diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 83e6aa11..a9a7b702 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 **go version**
 
+- fix #1308: load `.env` file as environment variables
 - fix #1309: locate plugin file upward recursively until system root dir
 
 ## v4.1.0-beta (2022-05-21)
diff --git a/examples/demo-with-go-plugin/proj.json b/examples/demo-with-go-plugin/proj.json
new file mode 100644
index 00000000..b8ac381a
--- /dev/null
+++ b/examples/demo-with-go-plugin/proj.json
@@ -0,0 +1,6 @@
+{
+    "project_name": "demo-with-go-plugin",
+    "project_path": "/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/examples/demo-with-go-plugin",
+    "create_time": "2022-05-24T11:10:10.127839+08:00",
+    "hrp_version": "v4.1.0-beta"
+}
\ No newline at end of file
diff --git a/examples/demo-with-go-plugin/testcases/requests.json b/examples/demo-with-go-plugin/testcases/requests.json
index b13f3837..9b4214d7 100644
--- a/examples/demo-with-go-plugin/testcases/requests.json
+++ b/examples/demo-with-go-plugin/testcases/requests.json
@@ -17,7 +17,7 @@
         {
             "name": "get with params",
             "variables": {
-                "foo1": "bar11",
+                "foo1": "${ENV(USERNAME)}",
                 "foo2": "bar21",
                 "sum_v": "${sum_two_int(1, 2)}"
             },
@@ -46,7 +46,7 @@
                 {
                     "eq": [
                         "body.args.foo1",
-                        "bar11"
+                        "debugtalk"
                     ]
                 },
                 {
diff --git a/examples/demo-with-go-plugin/testcases/requests.yml b/examples/demo-with-go-plugin/testcases/requests.yml
index 86d1b9cc..5ed53dd8 100644
--- a/examples/demo-with-go-plugin/testcases/requests.yml
+++ b/examples/demo-with-go-plugin/testcases/requests.yml
@@ -13,7 +13,7 @@ teststeps:
 -
     name: get with params
     variables:
-        foo1: bar11
+        foo1: ${ENV(USERNAME)}
         foo2: bar21
         sum_v: "${sum_two_int(1, 2)}"
     request:
@@ -29,7 +29,7 @@ teststeps:
         foo3: "body.args.foo2"
     validate:
         - eq: ["status_code", 200]
-        - eq: ["body.args.foo1", "bar11"]
+        - eq: ["body.args.foo1", "debugtalk"]
         - eq: ["body.args.sum_v", "3"]
         - eq: ["body.args.foo2", "bar21"]
 -
diff --git a/examples/demo-with-py-plugin/proj.json b/examples/demo-with-py-plugin/proj.json
new file mode 100644
index 00000000..fd0b8628
--- /dev/null
+++ b/examples/demo-with-py-plugin/proj.json
@@ -0,0 +1,6 @@
+{
+    "project_name": "demo-with-py-plugin",
+    "project_path": "/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/examples/demo-with-py-plugin",
+    "create_time": "2022-05-24T11:10:15.544763+08:00",
+    "hrp_version": "v4.1.0-beta"
+}
\ No newline at end of file
diff --git a/examples/demo-with-py-plugin/testcases/requests.json b/examples/demo-with-py-plugin/testcases/requests.json
index b13f3837..9b4214d7 100644
--- a/examples/demo-with-py-plugin/testcases/requests.json
+++ b/examples/demo-with-py-plugin/testcases/requests.json
@@ -17,7 +17,7 @@
         {
             "name": "get with params",
             "variables": {
-                "foo1": "bar11",
+                "foo1": "${ENV(USERNAME)}",
                 "foo2": "bar21",
                 "sum_v": "${sum_two_int(1, 2)}"
             },
@@ -46,7 +46,7 @@
                 {
                     "eq": [
                         "body.args.foo1",
-                        "bar11"
+                        "debugtalk"
                     ]
                 },
                 {
diff --git a/examples/demo-with-py-plugin/testcases/requests.yml b/examples/demo-with-py-plugin/testcases/requests.yml
index 86d1b9cc..5ed53dd8 100644
--- a/examples/demo-with-py-plugin/testcases/requests.yml
+++ b/examples/demo-with-py-plugin/testcases/requests.yml
@@ -13,7 +13,7 @@ teststeps:
 -
     name: get with params
     variables:
-        foo1: bar11
+        foo1: ${ENV(USERNAME)}
         foo2: bar21
         sum_v: "${sum_two_int(1, 2)}"
     request:
@@ -29,7 +29,7 @@ teststeps:
         foo3: "body.args.foo2"
     validate:
         - eq: ["status_code", 200]
-        - eq: ["body.args.foo1", "bar11"]
+        - eq: ["body.args.foo1", "debugtalk"]
         - eq: ["body.args.sum_v", "3"]
         - eq: ["body.args.foo2", "bar21"]
 -
diff --git a/examples/demo-without-plugin/proj.json b/examples/demo-without-plugin/proj.json
new file mode 100644
index 00000000..c6eef7d9
--- /dev/null
+++ b/examples/demo-without-plugin/proj.json
@@ -0,0 +1,6 @@
+{
+    "project_name": "demo-without-plugin",
+    "project_path": "/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/examples/demo-without-plugin",
+    "create_time": "2022-05-24T11:10:16.993462+08:00",
+    "hrp_version": "v4.1.0-beta"
+}
\ No newline at end of file
diff --git a/hrp/config.go b/hrp/config.go
index af903bc5..76912aa7 100644
--- a/hrp/config.go
+++ b/hrp/config.go
@@ -10,6 +10,7 @@ import (
 func NewConfig(name string) *TConfig {
 	return &TConfig{
 		Name:      name,
+		Env:       make(map[string]string),
 		Variables: make(map[string]interface{}),
 	}
 }
@@ -21,6 +22,7 @@ type TConfig struct {
 	Verify            bool                   `json:"verify,omitempty" yaml:"verify,omitempty"`
 	BaseURL           string                 `json:"base_url,omitempty" yaml:"base_url,omitempty"`
 	Headers           map[string]string      `json:"headers,omitempty" yaml:"headers,omitempty"`
+	Env               map[string]string      `json:"env,omitempty" yaml:"env,omitempty"`
 	Variables         map[string]interface{} `json:"variables,omitempty" yaml:"variables,omitempty"`
 	Parameters        map[string]interface{} `json:"parameters,omitempty" yaml:"parameters,omitempty"`
 	ParametersSetting *TParamsConfig         `json:"parameters_setting,omitempty" yaml:"parameters_setting,omitempty"`
diff --git a/hrp/internal/builtin/utils.go b/hrp/internal/builtin/utils.go
index cacad024..8bdc661d 100644
--- a/hrp/internal/builtin/utils.go
+++ b/hrp/internal/builtin/utils.go
@@ -294,12 +294,45 @@ func LoadFile(path string, structObj interface{}) (err error) {
 		err = decoder.Decode(structObj)
 	case ".yaml", ".yml":
 		err = yaml.Unmarshal(file, structObj)
+	case ".env":
+		err = parseEnvContent(file, structObj)
 	default:
 		err = ErrUnsupportedFileExt
 	}
 	return err
 }
 
+func parseEnvContent(file []byte, obj interface{}) error {
+	envMap := obj.(map[string]string)
+	lines := strings.Split(string(file), "\n")
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if line == "" || strings.HasPrefix(line, "#") {
+			// empty line or comment line
+			continue
+		}
+		var kv []string
+		if strings.Contains(line, "=") {
+			kv = strings.SplitN(line, "=", 2)
+		}
+		if strings.Contains(line, ":") {
+			kv = strings.SplitN(line, ":", 2)
+		}
+		if len(kv) != 2 {
+			return errors.New(".env format error")
+		}
+
+		key := strings.TrimSpace(kv[0])
+		value := strings.TrimSpace(kv[1])
+		envMap[key] = value
+
+		// set env
+		log.Info().Str("key", key).Msg("set env")
+		os.Setenv(key, value)
+	}
+	return nil
+}
+
 func loadFromCSV(path string) []map[string]interface{} {
 	log.Info().Str("path", path).Msg("load csv file")
 	file, err := readFile(path)
diff --git a/hrp/internal/scaffold/main.go b/hrp/internal/scaffold/main.go
index a0fe5efa..3392d960 100644
--- a/hrp/internal/scaffold/main.go
+++ b/hrp/internal/scaffold/main.go
@@ -104,7 +104,7 @@ func CreateScaffold(projectName string, pluginType PluginType, force bool) error
 	}
 
 	projectInfo := &ProjectInfo{
-		ProjectName: projectName,
+		ProjectName: filepath.Base(projectName),
 		ProjectPath: projectPath,
 		CreateTime:  time.Now(),
 		Version:     version.VERSION,
diff --git a/hrp/internal/scaffold/templates/testcases/demo_requests.json b/hrp/internal/scaffold/templates/testcases/demo_requests.json
index b13f3837..9b4214d7 100644
--- a/hrp/internal/scaffold/templates/testcases/demo_requests.json
+++ b/hrp/internal/scaffold/templates/testcases/demo_requests.json
@@ -17,7 +17,7 @@
         {
             "name": "get with params",
             "variables": {
-                "foo1": "bar11",
+                "foo1": "${ENV(USERNAME)}",
                 "foo2": "bar21",
                 "sum_v": "${sum_two_int(1, 2)}"
             },
@@ -46,7 +46,7 @@
                 {
                     "eq": [
                         "body.args.foo1",
-                        "bar11"
+                        "debugtalk"
                     ]
                 },
                 {
diff --git a/hrp/internal/scaffold/templates/testcases/demo_requests.yml b/hrp/internal/scaffold/templates/testcases/demo_requests.yml
index 86d1b9cc..5ed53dd8 100644
--- a/hrp/internal/scaffold/templates/testcases/demo_requests.yml
+++ b/hrp/internal/scaffold/templates/testcases/demo_requests.yml
@@ -13,7 +13,7 @@ teststeps:
 -
     name: get with params
     variables:
-        foo1: bar11
+        foo1: ${ENV(USERNAME)}
         foo2: bar21
         sum_v: "${sum_two_int(1, 2)}"
     request:
@@ -29,7 +29,7 @@ teststeps:
         foo3: "body.args.foo2"
     validate:
         - eq: ["status_code", 200]
-        - eq: ["body.args.foo1", "bar11"]
+        - eq: ["body.args.foo1", "debugtalk"]
         - eq: ["body.args.sum_v", "3"]
         - eq: ["body.args.foo2", "bar21"]
 -
diff --git a/hrp/testcase.go b/hrp/testcase.go
index 2a4e589c..0aa548ec 100644
--- a/hrp/testcase.go
+++ b/hrp/testcase.go
@@ -80,6 +80,16 @@ func (path *TestCasePath) ToTestCase() (*TestCase, error) {
 		return nil, errors.Wrap(err, "failed to get project root dir")
 	}
 
+	// load .env file
+	dotEnvPath := filepath.Join(projectRootDir, ".env")
+	if builtin.IsFilePathExists(dotEnvPath) {
+		testCase.Config.Env = make(map[string]string)
+		err = builtin.LoadFile(dotEnvPath, testCase.Config.Env)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to load .env file")
+		}
+	}
+
 	for _, step := range tc.TestSteps {
 		if step.API != nil {
 			apiPath, ok := step.API.(string)