diff --git a/doc/changes/export-shortcut.md b/doc/changes/export-shortcut.md
new file mode 100644
index 0000000..8d3616f
--- /dev/null
+++ b/doc/changes/export-shortcut.md
@@ -0,0 +1,15 @@
+# Export shortcut
+
+新增 `export` Shortcut 组，将仓库数据导出为 CSV / JSON 文件，支撑离线分析、科研数据抽取与外部报表：
+
+- `export +issues` — 导出 Issue 列表（GET `/v1/:owner/:repo/issues`）
+- `export +prs` — 导出 PR 列表（GET `/v1/:owner/:repo/pulls`）
+- `export +contributors` — 导出贡献者统计（GET `/:owner/:repo/contributors`）
+
+实现要点：
+
+- 统一 `--format csv|json`（默认 csv）与 `--output` 输出路径；`issues`/`prs` 额外支持 `--state open|closed|all` 过滤与 `--page/--limit` 分页。
+- CSV 表头固定（`id,title,state,created_at` 等），便于直接导入 Excel / pandas；JSON 保留原始字段，供 `workflow` 模块与科研 Skill 二次处理。
+- 导出过程只读、分页拉取全量，避免一次性请求超限。
+
+背景：此前要做仓库数据导出只能手工拼 Raw API 并自行解析分页。`export` 组将其提升为一等命令，是子任务四科研场景（贡献排行、Issue 趋势、PR 效率）的数据入口，并与 `gitlink-contributor-insight`、`gitlink-research-tracker` 等 Skill 衔接。关联 PR #15。
diff --git a/doc/commands/export.md b/doc/commands/export.md
new file mode 100644
index 0000000..64a10b8
--- /dev/null
+++ b/doc/commands/export.md
@@ -0,0 +1,68 @@
+# export — 数据导出命令
+
+> 关联 Issue: #15 | PR: #12
+
+## 概述
+
+export 模块提供将仓库数据（Issue、PR、贡献者）导出为 CSV 或 JSON 文件的能力，支持离线分析和科研用途。
+
+## 命令列表
+
+### export +issues
+- **用途**: 导出仓库 Issue 列表为 CSV 或 JSON 文件
+- **API**: GET /v1/:owner/:repo/issues
+- **参数**:
+  - --format, -f (可选) 输出格式: csv / json，默认 csv
+  - --output, -o (可选) 输出文件路径，默认 issues.csv
+  - --state, -s (可选) 状态过滤: open / closed / all，默认 all
+  - --page, -p (可选) 起始页，默认 1
+  - --limit, -l (可选) 每页数量，默认 50
+- **示例**:
+  - `gitlink-cli export +issues --format csv --output my_issues.csv`
+  - `gitlink-cli export +issues --format json --state open`
+
+### export +prs
+- **用途**: 导出仓库 PR 列表为 CSV 或 JSON 文件
+- **API**: GET /v1/:owner/:repo/pulls
+- **参数**:
+  - --format, -f (可选) 输出格式: csv / json，默认 csv
+  - --output, -o (可选) 输出文件路径，默认 prs.csv
+  - --state, -s (可选) 状态过滤，默认 all
+  - --page, -p (可选) 起始页，默认 1
+  - --limit, -l (可选) 每页数量，默认 50
+- **示例**:
+  - `gitlink-cli export +prs --format json`
+  - `gitlink-cli export +prs --state closed --output closed_prs.csv`
+
+### export +contributors
+- **用途**: 导出贡献者统计为 CSV 或 JSON 文件
+- **API**: GET /:owner/:repo/contributors
+- **参数**:
+  - --format, -f (可选) 输出格式: csv / json，默认 csv
+  - --output, -o (可选) 输出文件路径，默认 contributors.csv
+- **示例**:
+  - `gitlink-cli export +contributors --format json`
+
+## CSV 输出格式
+
+### issues.csv
+```csv
+id,title,state,created_at
+1,Bug fix,1,2026-01-01
+```
+
+### prs.csv
+```csv
+id,title,state,created_at
+2,Feature PR,0,2026-02-01
+```
+
+### contributors.csv
+```csv
+id,login,contributions
+1,dev1,42
+```
+
+## 向后兼容性
+
+无破坏性变更。所有命令通过 export 域组 + 前缀添加。
diff --git a/shortcuts/export/export.go b/shortcuts/export/export.go
new file mode 100644
index 0000000..9fe8bdd
--- /dev/null
+++ b/shortcuts/export/export.go
@@ -0,0 +1,179 @@
+package export
+
+import (
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"os"
+
+	"github.com/gitlink-org/gitlink-cli/shortcuts/common"
+)
+
+// Shortcuts returns data export shortcuts for GitLink.
+//
+// The export domain provides commands for exporting repository data
+// (issues, pull requests, contributors) to CSV or JSON files for
+// offline analysis and reporting.
+func Shortcuts() []*common.Shortcut {
+	return []*common.Shortcut{
+		{
+			Name:        "issues",
+			Description: "导出仓库 Issue 列表为 CSV 或 JSON 文件",
+			Flags: []common.Flag{
+				{Name: "format", Short: "f", Usage: "输出格式: csv / json", Default: "csv"},
+				{Name: "output", Short: "o", Usage: "输出文件路径（默认: issues.csv）", Default: "issues.csv"},
+				{Name: "state", Short: "s", Usage: "状态过滤: open / closed / all", Default: "all"},
+				{Name: "page", Short: "p", Usage: "起始页", Default: "1"},
+				{Name: "limit", Short: "l", Usage: "每页数量", Default: "50"},
+			},
+			Run: func(ctx *common.RuntimeContext) error {
+				if err := ctx.ResolveOwnerRepo(); err != nil {
+					return err
+				}
+				q := url.Values{}
+				q.Set("state", ctx.Arg("state"))
+				q.Set("page", ctx.Arg("page"))
+				q.Set("limit", ctx.Arg("limit"))
+				apiPath := fmt.Sprintf("/v1/%s/%s/issues", ctx.Owner, ctx.Repo)
+				items, err := ctx.PaginateAll(apiPath, q)
+				if err != nil {
+					return err
+				}
+				return writeExport(ctx.Arg("format"), ctx.Arg("output"), items, issueCSVHeader, issueCSVRow)
+			},
+		},
+		{
+			Name:        "prs",
+			Description: "导出仓库 PR 列表为 CSV 或 JSON 文件",
+			Flags: []common.Flag{
+				{Name: "format", Short: "f", Usage: "输出格式: csv / json", Default: "csv"},
+				{Name: "output", Short: "o", Usage: "输出文件路径", Default: "prs.csv"},
+				{Name: "state", Short: "s", Usage: "状态过滤", Default: "all"},
+				{Name: "page", Short: "p", Usage: "起始页", Default: "1"},
+				{Name: "limit", Short: "l", Usage: "每页数量", Default: "50"},
+			},
+			Run: func(ctx *common.RuntimeContext) error {
+				if err := ctx.ResolveOwnerRepo(); err != nil {
+					return err
+				}
+				q := url.Values{}
+				q.Set("state", ctx.Arg("state"))
+				q.Set("page", ctx.Arg("page"))
+				q.Set("limit", ctx.Arg("limit"))
+				apiPath := fmt.Sprintf("/v1/%s/%s/pulls", ctx.Owner, ctx.Repo)
+				items, err := ctx.PaginateAll(apiPath, q)
+				if err != nil {
+					return err
+				}
+				return writeExport(ctx.Arg("format"), ctx.Arg("output"), items, prCSVHeader, prCSVRow)
+			},
+		},
+		{
+			Name:        "contributors",
+			Description: "导出贡献者统计为 CSV 或 JSON 文件",
+			Flags: []common.Flag{
+				{Name: "format", Short: "f", Usage: "输出格式: csv / json", Default: "csv"},
+				{Name: "output", Short: "o", Usage: "输出文件路径", Default: "contributors.csv"},
+			},
+			Run: func(ctx *common.RuntimeContext) error {
+				if err := ctx.ResolveOwnerRepo(); err != nil {
+					return err
+				}
+				apiPath := fmt.Sprintf("/%s/%s/contributors", ctx.Owner, ctx.Repo)
+				items, err := ctx.PaginateAll(apiPath, url.Values{})
+				if err != nil {
+					return err
+				}
+				return writeExport(ctx.Arg("format"), ctx.Arg("output"), items, contributorCSVHeader, contributorCSVRow)
+			},
+		},
+	}
+}
+
+// --- CSV headers ---
+
+var issueCSVHeader = []string{"id", "title", "state", "created_at"}
+var prCSVHeader = []string{"id", "title", "state", "created_at"}
+var contributorCSVHeader = []string{"id", "login", "contributions"}
+
+// --- CSV row extractors ---
+
+func issueCSVRow(m map[string]interface{}) []string {
+	return []string{
+		fmt.Sprint(m["id"]),
+		fmt.Sprint(m["subject"]),
+		fmt.Sprint(m["status"]),
+		fmt.Sprint(m["created_at"]),
+	}
+}
+
+func prCSVRow(m map[string]interface{}) []string {
+	return []string{
+		fmt.Sprint(m["id"]),
+		fmt.Sprint(m["title"]),
+		fmt.Sprint(m["status"]),
+		fmt.Sprint(m["created_at"]),
+	}
+}
+
+func contributorCSVRow(m map[string]interface{}) []string {
+	return []string{
+		fmt.Sprint(m["id"]),
+		fmt.Sprint(m["login"]),
+		fmt.Sprint(m["contributions"]),
+	}
+}
+
+// --- Export writers ---
+
+type csvRowFunc func(map[string]interface{}) []string
+
+func writeExport(format, path string, items []json.RawMessage, header []string, rowFn csvRowFunc) error {
+	switch format {
+	case "csv":
+		return writeCSV(path, items, header, rowFn)
+	case "json":
+		return writeJSON(path, items)
+	default:
+		return fmt.Errorf("不支持的格式: %s（可选: csv, json）", format)
+	}
+}
+
+func writeCSV(path string, items []json.RawMessage, header []string, rowFn csvRowFunc) error {
+	f, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	w := csv.NewWriter(f)
+	defer w.Flush()
+
+	if err := w.Write(header); err != nil {
+		return err
+	}
+	for _, item := range items {
+		var m map[string]interface{}
+		if err := json.Unmarshal(item, &m); err != nil {
+			continue
+		}
+		if err := w.Write(rowFn(m)); err != nil {
+			return err
+		}
+	}
+	fmt.Printf("已导出 %d 条记录到 %s\n", len(items), path)
+	return nil
+}
+
+func writeJSON(path string, items []json.RawMessage) error {
+	data, err := json.MarshalIndent(items, "", "  ")
+	if err != nil {
+		return err
+	}
+	if err := os.WriteFile(path, data, 0644); err != nil {
+		return err
+	}
+	fmt.Printf("已导出 %d 条记录到 %s\n", len(items), path)
+	return nil
+}
diff --git a/shortcuts/export/export_test.go b/shortcuts/export/export_test.go
new file mode 100644
index 0000000..cda99f0
--- /dev/null
+++ b/shortcuts/export/export_test.go
@@ -0,0 +1,158 @@
+package export
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/gitlink-org/gitlink-cli/internal/client"
+	"github.com/gitlink-org/gitlink-cli/shortcuts/common"
+)
+
+func TestExportIssues(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "GET" {
+			t.Errorf("expected GET, got %s", r.Method)
+		}
+		w.WriteHeader(200)
+		w.Write([]byte(`[{"id":1,"subject":"Bug fix","status":1,"created_at":"2026-01-01"}]`))
+	}))
+	defer server.Close()
+
+	shortcut := findExportShortcut(t, "issues")
+	ctx := &common.RuntimeContext{
+		Client: &client.Client{HTTP: server.Client(), BaseURL: server.URL},
+		Owner:  "test", Repo: "test", Format: "json",
+		Args: map[string]string{
+			"format": "json",
+			"output": os.TempDir() + "/test_issues_export.json",
+			"state":  "all",
+			"page":   "1",
+			"limit":  "50",
+		},
+	}
+	if err := shortcut.Run(ctx); err != nil {
+		t.Fatalf("export issues failed: %v", err)
+	}
+}
+
+func TestExportPrs(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "GET" {
+			t.Errorf("expected GET, got %s", r.Method)
+		}
+		w.WriteHeader(200)
+		w.Write([]byte(`[{"id":2,"title":"Feature PR","status":0,"created_at":"2026-02-01"}]`))
+	}))
+	defer server.Close()
+
+	shortcut := findExportShortcut(t, "prs")
+	ctx := &common.RuntimeContext{
+		Client: &client.Client{HTTP: server.Client(), BaseURL: server.URL},
+		Owner:  "test", Repo: "test", Format: "json",
+		Args: map[string]string{
+			"format": "json",
+			"output": os.TempDir() + "/test_prs_export.json",
+			"state":  "all",
+			"page":   "1",
+			"limit":  "50",
+		},
+	}
+	if err := shortcut.Run(ctx); err != nil {
+		t.Fatalf("export prs failed: %v", err)
+	}
+}
+
+func TestExportContributors(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "GET" {
+			t.Errorf("expected GET, got %s", r.Method)
+		}
+		w.WriteHeader(200)
+		w.Write([]byte(`[{"id":1,"login":"dev1","contributions":42}]`))
+	}))
+	defer server.Close()
+
+	shortcut := findExportShortcut(t, "contributors")
+	ctx := &common.RuntimeContext{
+		Client: &client.Client{HTTP: server.Client(), BaseURL: server.URL},
+		Owner:  "test", Repo: "test", Format: "json",
+		Args: map[string]string{
+			"format": "json",
+			"output": os.TempDir() + "/test_contributors_export.json",
+		},
+	}
+	if err := shortcut.Run(ctx); err != nil {
+		t.Fatalf("export contributors failed: %v", err)
+	}
+}
+
+func TestExportUnsupportedFormat(t *testing.T) {
+	items := []json.RawMessage{[]byte(`{"id":1}`)}
+	err := writeExport("xml", "/dev/null", items, issueCSVHeader, issueCSVRow)
+	if err == nil {
+		t.Fatal("expected error for unsupported format")
+	}
+	if !strings.Contains(err.Error(), "不支持的格式") {
+		t.Errorf("error should mention unsupported format: %v", err)
+	}
+}
+
+func TestWriteCSV(t *testing.T) {
+	tmpFile := os.TempDir() + "/test_export_write.csv"
+	defer os.Remove(tmpFile)
+
+	items := []json.RawMessage{
+		[]byte(`{"id":1,"subject":"First","status":1,"created_at":"2026-01-01"}`),
+		[]byte(`{"id":2,"subject":"Second","status":0,"created_at":"2026-01-02"}`),
+	}
+	if err := writeCSV(tmpFile, items, issueCSVHeader, issueCSVRow); err != nil {
+		t.Fatalf("writeCSV failed: %v", err)
+	}
+
+	data, err := os.ReadFile(tmpFile)
+	if err != nil {
+		t.Fatalf("failed to read output file: %v", err)
+	}
+	content := string(data)
+	if !strings.Contains(content, "id,title,state,created_at") {
+		t.Errorf("CSV header missing in output: %s", content)
+	}
+	if !strings.Contains(content, "First") {
+		t.Errorf("expected 'First' in CSV output: %s", content)
+	}
+}
+
+func TestWriteJSON(t *testing.T) {
+	tmpFile := os.TempDir() + "/test_export_write.json"
+	defer os.Remove(tmpFile)
+
+	items := []json.RawMessage{
+		[]byte(`{"id":1,"name":"test"}`),
+	}
+	if err := writeJSON(tmpFile, items); err != nil {
+		t.Fatalf("writeJSON failed: %v", err)
+	}
+
+	data, err := os.ReadFile(tmpFile)
+	if err != nil {
+		t.Fatalf("failed to read output file: %v", err)
+	}
+	if !strings.Contains(string(data), `"id": 1`) && !strings.Contains(string(data), `"id":1`) {
+		t.Errorf("JSON content unexpected: %s", string(data))
+	}
+}
+
+func findExportShortcut(t *testing.T, name string) *common.Shortcut {
+	t.Helper()
+	for _, shortcut := range Shortcuts() {
+		if shortcut.Name == name {
+			return shortcut
+		}
+	}
+	t.Fatalf("shortcut %q not found", name)
+	return nil
+}
diff --git a/shortcuts/register.go b/shortcuts/register.go
index f081a12..df59bc6 100644
--- a/shortcuts/register.go
+++ b/shortcuts/register.go
@@ -10,6 +10,7 @@ import (
 	"github.com/gitlink-org/gitlink-cli/shortcuts/common"
 	"github.com/gitlink-org/gitlink-cli/shortcuts/compare"
 	"github.com/gitlink-org/gitlink-cli/shortcuts/dataset"
+	"github.com/gitlink-org/gitlink-cli/shortcuts/export"
 	"github.com/gitlink-org/gitlink-cli/shortcuts/health"
 	"github.com/gitlink-org/gitlink-cli/shortcuts/ignore"
 	"github.com/gitlink-org/gitlink-cli/shortcuts/issue"
@@ -58,6 +59,7 @@ func RegisterAll(root *cobra.Command, translators ...*i18n.Translator) {
 		"ci":        ci.Shortcuts(tr),
 		"compare":   compare.Shortcuts(),
 		"dataset":   dataset.Shortcuts(tr),
+		"export":    export.Shortcuts(),
 		"webhook":   webhook.Shortcuts(tr),
 		"wiki":      wiki.Shortcuts(),
 		"health":    health.Shortcuts(tr),
@@ -86,6 +88,7 @@ func RegisterAll(root *cobra.Command, translators ...*i18n.Translator) {
 		"ci":        tr.T("cmd.ci.short"),
 		"compare":   "Compare branches, tags, or commits",
 		"dataset":   tr.T("cmd.dataset.short"),
+		"export":    "Data export to CSV/JSON",
 		"webhook":   tr.T("cmd.webhook.short"),
 		"wiki":      "Wiki page management",
 		"health":    "Project health data collection",