diff --git a/mindspore/ccsrc/debug/data_dump/dump_json_parser.cc b/mindspore/ccsrc/debug/data_dump/dump_json_parser.cc
index 5e30142e3e0..c62716b4a9d 100644
--- a/mindspore/ccsrc/debug/data_dump/dump_json_parser.cc
+++ b/mindspore/ccsrc/debug/data_dump/dump_json_parser.cc
@@ -232,7 +232,6 @@ void DumpJsonParser::ParseCommonDumpSetting(const nlohmann::json &content) {
 
   auto common_dump_settings = CheckJsonKeyExist(content, kCommonDumpSettings);
   auto dump_mode = CheckJsonKeyExist(*common_dump_settings, kDumpMode);
-  auto path = CheckJsonKeyExist(*common_dump_settings, kPath);
   auto net_name = CheckJsonKeyExist(*common_dump_settings, kNetName);
   auto iteration = CheckJsonKeyExist(*common_dump_settings, kIteration);
   auto input_output = CheckJsonKeyExist(*common_dump_settings, kInputOutput);
@@ -245,7 +244,7 @@ void DumpJsonParser::ParseCommonDumpSetting(const nlohmann::json &content) {
   }
 
   ParseDumpMode(*dump_mode);
-  ParseDumpPath(*path);
+  ParseDumpPath(*common_dump_settings);  // Pass in the whole json string to parse because the path field is optional.
   ParseNetName(*net_name);
   ParseIteration(*iteration);
   ParseInputOutput(*input_output);
@@ -302,15 +301,29 @@ void DumpJsonParser::ParseDumpMode(const nlohmann::json &content) {
 }
 
 void DumpJsonParser::ParseDumpPath(const nlohmann::json &content) {
-  CheckJsonStringType(content, kPath);
-  path_ = content;
+  std::string dump_path;
+  auto json_iter = content.find(kPath);
+  // Check if `path` field exists in dump json file.
+  if (json_iter != content.end()) {
+    CheckJsonStringType(*json_iter, kPath);
+    dump_path = *json_iter;
+  }
+  if (dump_path.empty()) {
+    // If no path is found or path is set as empty in dump json file, use MS_DIAGNOSTIC_DATA_PATH/debug_dump as the dump
+    // path value if the env exists.
+    dump_path = common::GetEnv("MS_DIAGNOSTIC_DATA_PATH");
+    if (dump_path.empty()) {
+      MS_LOG(EXCEPTION)
+        << "Dump path is empty. Please set it in dump json file or environment variable `MS_DIAGNOSTIC_DATA_PATH`.";
+    } else {
+      dump_path += "/debug_dump";
+    }
+  }
+  path_ = dump_path;
   if (!std::all_of(path_.begin(), path_.end(),
                    [](char c) { return ::isalpha(c) || ::isdigit(c) || c == '-' || c == '_' || c == '/'; })) {
     MS_LOG(EXCEPTION) << "Dump path only support alphabets, digit or {'-', '_', '/'}, but got:" << path_;
   }
-  if (path_.empty()) {
-    MS_LOG(EXCEPTION) << "Dump path is empty";
-  }
   if (path_[0] != '/') {
     MS_LOG(EXCEPTION) << "Dump path only support absolute path and should start with '/'";
   }
diff --git a/tests/st/dump/test_data_dump.py b/tests/st/dump/test_data_dump.py
index 43234ef226a..29056acf1ae 100644
--- a/tests/st/dump/test_data_dump.py
+++ b/tests/st/dump/test_data_dump.py
@@ -73,6 +73,9 @@ def test_async_dump():
     time.sleep(5)
     assert len(os.listdir(dump_file_path)) == 1
 
+    # Delete generated dump data
+    os.system("rm -rf {}".format(dump_path))
+
 
 def run_e2e_dump():
     if sys.platform != 'linux':
@@ -103,6 +106,9 @@ def run_e2e_dump():
     assert output.dtype == expect.dtype
     assert np.array_equal(output, expect)
 
+    # Delete generated dump data
+    os.system("rm -rf {}".format(dump_path))
+
 
 @pytest.mark.level0
 @pytest.mark.platform_arm_ascend_training
@@ -205,3 +211,29 @@ def test_async_dump_net_multi_layer_mode1():
             assert value.asnumpy() == dump_result["output0"][index]
     else:
         print('not find convert tools msaccucmp.pyc')
+
+
+@pytest.mark.level0
+@pytest.mark.platform_arm_ascend_training
+@pytest.mark.platform_x86_ascend_training
+@pytest.mark.env_onecard
+def test_dump_with_diagnostic_path():
+    """
+    Test e2e dump when path is not set (set to empty) in dump json file and MS_DIAGNOSTIC_DATA_PATH is set.
+    Data is expected to be dumped into MS_DIAGNOSTIC_DATA_PATH/debug_dump.
+    """
+    context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
+    pwd = os.getcwd()
+    change_current_dump_json('e2e_dump.json', '')
+    os.environ['MINDSPORE_DUMP_CONFIG'] = pwd + "/e2e_dump.json"
+    diagnose_path = pwd + "/e2e_dump"
+    os.environ['MS_DIAGNOSTIC_DATA_PATH'] = diagnose_path
+    dump_file_path = diagnose_path + '/debug_dump/rank_0/Net/0/0/'
+    if os.path.isdir(diagnose_path):
+        shutil.rmtree(diagnose_path)
+    add = Net()
+    add(Tensor(x), Tensor(y))
+    assert len(os.listdir(dump_file_path)) == 5
+
+    # Delete generated dump data
+    os.system("rm -rf {}".format(diagnose_path))