diff --git a/ast/parser.go b/ast/parser.go
index 5dc743953..22fe17bf6 100644
--- a/ast/parser.go
+++ b/ast/parser.go
@@ -21,6 +21,7 @@ import (
 
     `github.com/bytedance/sonic/internal/native/types`
     `github.com/bytedance/sonic/internal/rt`
+    `github.com/bytedance/sonic/option`
 )
 
 const (
@@ -49,7 +50,7 @@ type Parser struct {
     dbuf        *byte
 }
 
-var noLazy bool = false
+var noLazy = option.AstSafeConcurrentRead
 
 /** Parser Private Methods **/
 
diff --git a/option/option.go b/option/option.go
index 71527cdf0..c0a31356d 100644
--- a/option/option.go
+++ b/option/option.go
@@ -16,6 +16,8 @@
 
 package option
 
+import `os`
+
 var (
     // DefaultDecoderBufferSize is the initial buffer size of StreamDecoder
     DefaultDecoderBufferSize  uint = 128 * 1024
@@ -83,4 +85,10 @@ func WithCompileMaxInlineDepth(depth int) CompileOption {
             o.MaxInlineDepth = depth
         }
 }
- 
\ No newline at end of file
+
+var (
+    // AstSafeConcurrentRead indicate that `sonic/ast.Node`` can be concurrently 'Read'
+    // (for `GetByPath/Get/Index/Int64/String/Bool/Float64/Number/Interface/Map/Array/ForEach/Values/Properties`)
+    // NOTICE: Use it may cause `ast.Node`` performace decline 
+    AstSafeConcurrentRead = os.Getenv("SONIC_AST_SAFE_CONCURRENT_READ") != ""
+)
\ No newline at end of file