diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 3c7931d9..5c522f56 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -7,7 +7,7 @@
 **go version**
 
 - feat: add `--profile` flag for har2case to support overwrite headers/cookies with specified yaml/json profile file
-- feat: support run testcases in specified folder path
+- feat: support run testcases in specified folder path, including testcases in sub folders
 - change: integrate [sentry sdk][sentry sdk] for panic reporting and analysis
 - change: lock funplugin version when creating scaffold project
 - fix: call referenced api/testcase with relative path
diff --git a/hrp/runner.go b/hrp/runner.go
index b0e50c7c..4219e88e 100644
--- a/hrp/runner.go
+++ b/hrp/runner.go
@@ -10,7 +10,7 @@ import (
 	"fmt"
 	"html/template"
 	"io"
-	"io/ioutil"
+	"io/fs"
 	"net"
 	"net/http"
 	"net/http/httputil"
@@ -219,40 +219,42 @@ func loadTestCases(iTestCases ...ITestCase) ([]*TestCase, error) {
 		}
 
 		// iTestCase should be a TestCasePath, file path or folder path
-		testCasePath, ok := iTestCase.(*TestCasePath)
+		tcPath, ok := iTestCase.(*TestCasePath)
 		if !ok {
 			return nil, errors.New("invalid iTestCase type")
 		}
 
-		casePaths := make([]*TestCasePath, 0)
-		casePath := iTestCase.GetPath()
-		if builtin.IsFolderPathExists(casePath) {
-			// folder path
-			files, err := ioutil.ReadDir(casePath)
-			if err != nil {
-				return nil, errors.Wrap(err, "read dir failed")
+		casePath := tcPath.GetPath()
+		err := fs.WalkDir(os.DirFS(casePath), ".", func(path string, dir fs.DirEntry, e error) error {
+			if dir == nil {
+				// casePath is a file other than a dir
+				path = casePath
+			} else if dir.IsDir() && path != "." && strings.HasPrefix(path, ".") {
+				// skip hidden folders
+				return fs.SkipDir
+			} else {
+				// casePath is a dir
+				path = filepath.Join(casePath, path)
 			}
-			for _, f := range files {
-				ext := filepath.Ext(f.Name())
-				if ext != ".yml" && ext != ".yaml" && ext != ".json" {
-					// ignore non-testcase files
-					continue
-				}
-				path := TestCasePath(filepath.Join(casePath, f.Name()))
-				casePaths = append(casePaths, &path)
-			}
-		} else {
-			// file path
-			casePaths = append(casePaths, testCasePath)
-		}
 
-		for _, path := range casePaths {
-			tc, err := path.ToTestCase()
+			// ignore non-testcase files
+			ext := filepath.Ext(path)
+			if ext != ".yml" && ext != ".yaml" && ext != ".json" {
+				return nil
+			}
+
+			// filtered testcases
+			testCasePath := TestCasePath(path)
+			tc, err := testCasePath.ToTestCase()
 			if err != nil {
-				log.Error().Err(err).Str("path", path.GetPath()).Msg("load testcase failed")
-				return nil, errors.Wrap(err, "load testcase failed")
+				log.Error().Err(err).Str("path", path).Msg("load testcase failed")
+				return errors.Wrap(err, "load testcase failed")
 			}
 			testCases = append(testCases, tc)
+			return nil
+		})
+		if err != nil {
+			return nil, errors.Wrap(err, "read dir failed")
 		}
 	}
 
diff --git a/hrp/runner_test.go b/hrp/runner_test.go
index 85216814..98060d7a 100644
--- a/hrp/runner_test.go
+++ b/hrp/runner_test.go
@@ -296,13 +296,23 @@ func TestLoadTestCases(t *testing.T) {
 		t.Fail()
 	}
 
+	// load test cases from folder path, including sub folders
+	tc = TestCasePath("../examples/demo-with-py-plugin/")
+	testCases, err = loadTestCases(&tc)
+	if !assert.Nil(t, err) {
+		t.Fail()
+	}
+	if !assert.Equal(t, len(testCases), 3) {
+		t.Fail()
+	}
+
 	// load test cases from single file path
 	tc = demoTestCaseWithPluginJSONPath
 	testCases, err = loadTestCases(&tc)
 	if !assert.Nil(t, err) {
 		t.Fail()
 	}
-	if !assert.Equal(t, len(testCases), 1) {
+	if !assert.Equal(t, 1, len(testCases)) {
 		t.Fail()
 	}
 
diff --git a/httprunner/utils.py b/httprunner/utils.py
index 27b0b876..41895e49 100644
--- a/httprunner/utils.py
+++ b/httprunner/utils.py
@@ -33,7 +33,7 @@ class GAClient(object):
 
     def __init__(self, tracking_id: Text):
         self.http_client = requests.Session()
-        self.label = str(__version__)
+        self.label = f"v{__version__}"
         self.common_params = {
             'v': self.version,
             'tid': tracking_id,    # Tracking ID / Property ID, XX-XXXXXXX-X