diff --git a/controllers/jenkins/pipeline/json_converter.go b/controllers/jenkins/pipeline/json_converter.go
index 2ed030e6..59404809 100644
--- a/controllers/jenkins/pipeline/json_converter.go
+++ b/controllers/jenkins/pipeline/json_converter.go
@@ -112,6 +112,7 @@ func (r *JenkinsfileReconciler) reconcileJenkinsfileEditMode(pip *v1alpha3.Pipel
 	// Users are able to clean jenkinsfile
 	if jenkinsfile != "" {
 		var toJSONResult core.GenericResult
+		jenkinsfile = strings.ReplaceAll(jenkinsfile, "\\", "\\\\") // escape backslash
 		if toJSONResult, err = coreClient.ToJSON(jenkinsfile); err != nil || toJSONResult.GetStatus() != "success" {
 			r.log.Error(err, "failed to convert jenkinsfile to json format")
 			if err != nil {
@@ -168,9 +169,13 @@ func (r *JenkinsfileReconciler) reconcileJSONEditMode(pip *v1alpha3.Pipeline, pi
 			err = r.updateAnnotations(pip.Annotations, pipelineKey)
 			return
 		}
+		jenkinsfile := toResult.GetResult()
+		jenkinsfile = strings.ReplaceAll(jenkinsfile, "\\\\", "\\") // unescape backslash
+		jenkinsfile = strings.ReplaceAll(jenkinsfile, `\'`, `'`)    // unescape single quote
+
 		pip.Annotations[v1alpha3.PipelineJenkinsfileEditModeAnnoKey] = ""
 		pip.Annotations[v1alpha3.PipelineJenkinsfileValidateAnnoKey] = v1alpha3.PipelineJenkinsfileValidateSuccess
-		err = r.updateAnnotationsAndJenkinsfile(pip.Annotations, toResult.GetResult(), pipelineKey)
+		err = r.updateAnnotationsAndJenkinsfile(pip.Annotations, jenkinsfile, pipelineKey)
 	}
 	return
 }
diff --git a/pkg/api/devops/v1alpha3/steptemplate_render.go b/pkg/api/devops/v1alpha3/steptemplate_render.go
index 5a8cf324..004d55e3 100644
--- a/pkg/api/devops/v1alpha3/steptemplate_render.go
+++ b/pkg/api/devops/v1alpha3/steptemplate_render.go
@@ -137,6 +137,10 @@ func dslRender(dslTpl string, param map[string]interface{}, secret *v1.Secret) (
 
 func shellRender(shellTpl string, param map[string]interface{}, secret *v1.Secret) (output string, err error) {
 	if output, err = dslRender(shellTpl, param, secret); err == nil {
+		escapedOutput := strings.ReplaceAll(output, `\`, `\\`)
+		escapedOutput = strings.ReplaceAll(escapedOutput, "\n", "\\n")
+		escapedOutput = strings.ReplaceAll(escapedOutput, `"`, `\"`)
+
 		output = fmt.Sprintf(`{
 "arguments": [
   {
@@ -148,7 +152,7 @@ func shellRender(shellTpl string, param map[string]interface{}, secret *v1.Secre
   }
 ],
 "name": "sh"
-}`, strings.ReplaceAll(output, "\n", "\\n"))
+}`, escapedOutput)
 	}
 	return
 }
diff --git a/pkg/api/devops/v1alpha3/steptemplate_render_test.go b/pkg/api/devops/v1alpha3/steptemplate_render_test.go
index b429d6cd..ab9cf324 100644
--- a/pkg/api/devops/v1alpha3/steptemplate_render_test.go
+++ b/pkg/api/devops/v1alpha3/steptemplate_render_test.go
@@ -28,8 +28,16 @@ import (
 
 func Test_handler_stepTemplateRender(t *testing.T) {
 	stepTemplate := &StepTemplateSpec{
-		Template: `echo 1`,
-		Runtime:  "shell",
+		Template: `cat > log.sh << EOF
+        for ((i=1; i<=1000000; i++))
+        do
+            echo "Log message number \\$i: This is a sample log message."
+        done
+EOF
+
+        cat log.sh
+        bash log.sh`,
+		Runtime: "shell",
 	}
 	stepTemplateWithParameters := &StepTemplateSpec{
 		Template: `docker login -u $USERNAMEVARIABLE -p $PASSWORDVARIABLE
@@ -74,7 +82,7 @@ docker build {{.param.context}} -t {{.param.tag}} -f {{.param.dockerfile.path}}`
       "key": "script",
       "value": {
         "isLiteral": true,
-        "value": "echo 1"
+        "value": "cat > log.sh << EOF\n        for ((i=1; i<=1000000; i++))\n        do\n            echo \"Log message number \\\\$i: This is a sample log message.\"\n        done\nEOF\n\n        cat log.sh\n        bash log.sh"
       }
     }
   ],