diff --git a/boomer.go b/boomer.go
index 3236a007..0989ce40 100644
--- a/boomer.go
+++ b/boomer.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/httprunner/hrp/internal/boomer"
 	"github.com/httprunner/hrp/internal/ga"
+	"github.com/httprunner/hrp/plugin/common"
 )
 
 func NewBoomer(spawnCount int, spawnRate float64) *HRPBoomer {
@@ -20,7 +21,8 @@ func NewBoomer(spawnCount int, spawnRate float64) *HRPBoomer {
 
 type HRPBoomer struct {
 	*boomer.Boomer
-	debug bool
+	plugins []common.Plugin // each task has its own plugin process
+	debug   bool
 }
 
 // SetDebug configures whether to log HTTP request and response content.
@@ -57,14 +59,29 @@ func (b *HRPBoomer) Run(testcases ...ITestCase) {
 	b.Boomer.Run(taskSlice...)
 }
 
+func (b *HRPBoomer) Quit() {
+	for _, plugin := range b.plugins {
+		plugin.Quit()
+	}
+	b.Boomer.Quit()
+}
+
 func (b *HRPBoomer) convertBoomerTask(testcase *TestCase) *boomer.Task {
 	hrpRunner := NewRunner(nil).SetDebug(b.debug)
 	config := testcase.Config.ToStruct()
+
+	// each testcase has its own plugin process
+	plugin, _ := initPlugin(config.Path)
+	if plugin != nil {
+		b.plugins = append(b.plugins, plugin)
+	}
+
 	return &boomer.Task{
 		Name:   config.Name,
 		Weight: config.Weight,
 		Fn: func() {
 			runner := hrpRunner.newCaseRunner(testcase)
+			runner.parser.plugin = plugin
 
 			testcaseSuccess := true       // flag whole testcase result
 			var transactionSuccess = true // flag current transaction result
@@ -74,6 +91,7 @@ func (b *HRPBoomer) convertBoomerTask(testcase *TestCase) *boomer.Task {
 			// copy config to avoid data racing
 			if err := copier.Copy(caseConfig, cfg); err != nil {
 				log.Error().Err(err).Msg("copy config data failed")
+				return
 			}
 			// iterate through all parameter iterators and update case variables
 			for _, it := range caseConfig.ParametersSetting.Iterators {
@@ -81,6 +99,13 @@ func (b *HRPBoomer) convertBoomerTask(testcase *TestCase) *boomer.Task {
 					caseConfig.Variables = mergeVariables(it.Next(), caseConfig.Variables)
 				}
 			}
+
+			config := runner.TestCase.Config
+			if err := runner.parseConfig(config); err != nil {
+				log.Error().Err(err).Msg("parse config failed")
+				return
+			}
+
 			startTime := time.Now()
 			for index, step := range testcase.TestSteps {
 				stepData, err := runner.runStep(index, caseConfig)
diff --git a/boomer_test.go b/boomer_test.go
index b49e1069..ab61e62e 100644
--- a/boomer_test.go
+++ b/boomer_test.go
@@ -6,6 +6,9 @@ import (
 )
 
 func TestBoomerStandaloneRun(t *testing.T) {
+	buildHashicorpPlugin()
+	defer removeHashicorpPlugin()
+
 	testcase1 := &TestCase{
 		Config: NewConfig("TestCase1").SetBaseURL("http://httpbin.org"),
 		TestSteps: []IStep{
diff --git a/docs/cmd/hrp.md b/docs/cmd/hrp.md
index 14de4bca..0a64f28f 100644
--- a/docs/cmd/hrp.md
+++ b/docs/cmd/hrp.md
@@ -33,4 +33,4 @@ Copyright 2021 debugtalk
 * [hrp run](hrp_run.md)	 - run API test
 * [hrp startproject](hrp_startproject.md)	 - create a scaffold project
 
-###### Auto generated by spf13/cobra on 17-Jan-2022
+###### Auto generated by spf13/cobra on 18-Jan-2022
diff --git a/docs/cmd/hrp_boom.md b/docs/cmd/hrp_boom.md
index 9b274446..162ae0e3 100644
--- a/docs/cmd/hrp_boom.md
+++ b/docs/cmd/hrp_boom.md
@@ -39,4 +39,4 @@ hrp boom [flags]
 
 * [hrp](hrp.md)	 - One-stop solution for HTTP(S) testing.
 
-###### Auto generated by spf13/cobra on 17-Jan-2022
+###### Auto generated by spf13/cobra on 18-Jan-2022
diff --git a/docs/cmd/hrp_har2case.md b/docs/cmd/hrp_har2case.md
index 2fe2e4ae..2d575c70 100644
--- a/docs/cmd/hrp_har2case.md
+++ b/docs/cmd/hrp_har2case.md
@@ -23,4 +23,4 @@ hrp har2case $har_path... [flags]
 
 * [hrp](hrp.md)	 - One-stop solution for HTTP(S) testing.
 
-###### Auto generated by spf13/cobra on 17-Jan-2022
+###### Auto generated by spf13/cobra on 18-Jan-2022
diff --git a/docs/cmd/hrp_run.md b/docs/cmd/hrp_run.md
index 2abd2c76..5c1f1c40 100644
--- a/docs/cmd/hrp_run.md
+++ b/docs/cmd/hrp_run.md
@@ -31,4 +31,4 @@ hrp run $path... [flags]
 
 * [hrp](hrp.md)	 - One-stop solution for HTTP(S) testing.
 
-###### Auto generated by spf13/cobra on 17-Jan-2022
+###### Auto generated by spf13/cobra on 18-Jan-2022
diff --git a/docs/cmd/hrp_startproject.md b/docs/cmd/hrp_startproject.md
index 40b7807b..96485c09 100644
--- a/docs/cmd/hrp_startproject.md
+++ b/docs/cmd/hrp_startproject.md
@@ -16,4 +16,4 @@ hrp startproject $project_name [flags]
 
 * [hrp](hrp.md)	 - One-stop solution for HTTP(S) testing.
 
-###### Auto generated by spf13/cobra on 17-Jan-2022
+###### Auto generated by spf13/cobra on 18-Jan-2022
diff --git a/internal/scaffold/demo_test.go b/internal/scaffold/demo_test.go
index a78d3dcf..9f301c4a 100644
--- a/internal/scaffold/demo_test.go
+++ b/internal/scaffold/demo_test.go
@@ -2,8 +2,12 @@ package scaffold
 
 import (
 	"fmt"
+	"os"
+	"os/exec"
 	"testing"
 
+	"github.com/rs/zerolog/log"
+
 	"github.com/httprunner/hrp"
 )
 
@@ -12,6 +16,21 @@ var (
 	demoTestCaseYAMLPath = "../../examples/demo.yaml"
 )
 
+func buildHashicorpPlugin() {
+	log.Info().Msg("[init] build hashicorp go plugin")
+	cmd := exec.Command("go", "build",
+		"-o", "../../examples/debugtalk.bin",
+		"../../examples/plugin/hashicorp.go", "../../examples/plugin/debugtalk.go")
+	if err := cmd.Run(); err != nil {
+		panic(err)
+	}
+}
+
+func removeHashicorpPlugin() {
+	log.Info().Msg("[teardown] remove hashicorp plugin")
+	os.Remove("../../examples/debugtalk.bin")
+}
+
 func TestGenDemoTestCase(t *testing.T) {
 	tCase, _ := demoTestCase.ToTCase()
 	err := tCase.Dump2JSON(demoTestCaseJSONPath)
@@ -25,6 +44,9 @@ func TestGenDemoTestCase(t *testing.T) {
 }
 
 func Example_demo() {
+	buildHashicorpPlugin()
+	defer removeHashicorpPlugin()
+
 	demoTestCase.Config.ToStruct().Path = "../../examples/debugtalk.bin"
 	err := hrp.NewRunner(nil).Run(demoTestCase) // hrp.Run(demoTestCase)
 	fmt.Println(err)
@@ -33,6 +55,9 @@ func Example_demo() {
 }
 
 func Example_jsonDemo() {
+	buildHashicorpPlugin()
+	defer removeHashicorpPlugin()
+
 	testCase := &hrp.TestCasePath{Path: demoTestCaseJSONPath}
 	err := hrp.NewRunner(nil).Run(testCase) // hrp.Run(testCase)
 	fmt.Println(err)
@@ -41,6 +66,9 @@ func Example_jsonDemo() {
 }
 
 func Example_yamlDemo() {
+	buildHashicorpPlugin()
+	defer removeHashicorpPlugin()
+
 	testCase := &hrp.TestCasePath{Path: demoTestCaseYAMLPath}
 	err := hrp.NewRunner(nil).Run(testCase) // hrp.Run(testCase)
 	fmt.Println(err)
diff --git a/plugin/common/hashicorp_plugin_test.go b/plugin/common/hashicorp_plugin_test.go
index 06713926..a0c6a806 100644
--- a/plugin/common/hashicorp_plugin_test.go
+++ b/plugin/common/hashicorp_plugin_test.go
@@ -1,18 +1,18 @@
 package common
 
 import (
-	"fmt"
 	"os"
 	"os/exec"
 	"testing"
 
+	"github.com/rs/zerolog/log"
 	"github.com/stretchr/testify/assert"
 )
 
 func buildHashicorpPlugin() {
-	fmt.Println("[init] build hashicorp go plugin")
+	log.Info().Msg("[init] build hashicorp go plugin")
 	cmd := exec.Command("go", "build",
-		"-o=debugtalk.bin",
+		"-o", "../../examples/debugtalk.bin",
 		"../../examples/plugin/hashicorp.go", "../../examples/plugin/debugtalk.go")
 	if err := cmd.Run(); err != nil {
 		panic(err)
@@ -20,15 +20,15 @@ func buildHashicorpPlugin() {
 }
 
 func removeHashicorpPlugin() {
-	fmt.Println("[teardown] remove hashicorp plugin")
-	os.Remove("debugtalk.bin")
+	log.Info().Msg("[teardown] remove hashicorp plugin")
+	os.Remove("../../examples/debugtalk.bin")
 }
 
 func TestInitHashicorpPlugin(t *testing.T) {
 	buildHashicorpPlugin()
 	defer removeHashicorpPlugin()
 
-	plugin, err := Init("debugtalk.bin")
+	plugin, err := Init("../../examples/debugtalk.bin")
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/runner.go b/runner.go
index fb2bedb4..f8f20899 100644
--- a/runner.go
+++ b/runner.go
@@ -156,12 +156,19 @@ func (r *caseRunner) reset() *caseRunner {
 }
 
 func (r *caseRunner) run() error {
+	config := r.TestCase.Config
+
+	// init plugin
+	var err error
+	if r.parser.plugin, err = initPlugin(config.ToStruct().Path); err != nil {
+		return err
+	}
 	defer func() {
 		if r.parser.plugin != nil {
 			r.parser.plugin.Quit()
 		}
 	}()
-	config := r.TestCase.Config
+
 	if err := r.parseConfig(config); err != nil {
 		return err
 	}
@@ -182,6 +189,33 @@ func (r *caseRunner) run() error {
 	return nil
 }
 
+func initPlugin(path string) (plugin common.Plugin, err error) {
+	defer func() {
+		if plugin == nil {
+			return
+		}
+
+		var pluginType string
+		if _, ok := plugin.(*common.GoPlugin); ok {
+			pluginType = "go"
+		} else {
+			pluginType = "hashicorp"
+		}
+
+		// report event for initializing plugin
+		event := ga.EventTracking{
+			Category: "InitPlugin",
+			Action:   fmt.Sprintf("Init %s plugin", pluginType),
+		}
+		if err != nil {
+			event.Value = 1 // failed
+		}
+		go ga.SendEvent(event)
+	}()
+	plugin, err = common.Init(path)
+	return
+}
+
 func (r *caseRunner) runStep(index int, caseConfig *TConfig) (stepResult *stepData, err error) {
 	step := r.TestCase.TestSteps[index]
 
@@ -504,34 +538,6 @@ func (r *caseRunner) runStepTestCase(step *TStep) (stepResult *stepData, err err
 func (r *caseRunner) parseConfig(config IConfig) error {
 	cfg := config.ToStruct()
 
-	// init plugin
-	var err error
-	defer func() {
-		if r.parser.plugin == nil {
-			return
-		}
-		var pluginType string
-		if _, ok := r.parser.plugin.(*common.GoPlugin); ok {
-			pluginType = "go"
-		} else {
-			pluginType = "hashicorp"
-		}
-
-		// report event for initializing plugin
-		event := ga.EventTracking{
-			Category: "InitPlugin",
-			Action:   fmt.Sprintf("Init %s plugin", pluginType),
-		}
-		if err != nil {
-			event.Value = 1 // failed
-		}
-		go ga.SendEvent(event)
-	}()
-	r.parser.plugin, err = common.Init(cfg.Path)
-	if err != nil {
-		return err
-	}
-
 	// parse config variables
 	parsedVariables, err := r.parser.parseVariables(cfg.Variables)
 	if err != nil {
diff --git a/runner_test.go b/runner_test.go
index 686d67e1..2fb64fcf 100644
--- a/runner_test.go
+++ b/runner_test.go
@@ -1,10 +1,32 @@
 package hrp
 
 import (
+	"os"
+	"os/exec"
 	"testing"
+
+	"github.com/rs/zerolog/log"
 )
 
+func buildHashicorpPlugin() {
+	log.Info().Msg("[init] build hashicorp go plugin")
+	cmd := exec.Command("go", "build",
+		"-o", "examples/debugtalk.bin",
+		"examples/plugin/hashicorp.go", "examples/plugin/debugtalk.go")
+	if err := cmd.Run(); err != nil {
+		panic(err)
+	}
+}
+
+func removeHashicorpPlugin() {
+	log.Info().Msg("[teardown] remove hashicorp plugin")
+	os.Remove("examples/debugtalk.bin")
+}
+
 func TestHttpRunner(t *testing.T) {
+	buildHashicorpPlugin()
+	defer removeHashicorpPlugin()
+
 	testcase1 := &TestCase{
 		Config: NewConfig("TestCase1").
 			SetBaseURL("http://httpbin.org"),