diff --git a/assembler/annotation.cpp b/assembler/annotation.cpp
index b9f4621973..61bfa8590a 100644
--- a/assembler/annotation.cpp
+++ b/assembler/annotation.cpp
@@ -258,4 +258,15 @@ void AnnotationData::SetOrAddElementByIndex(size_t ele_idx, AnnotationElement &&
     }
     elements_[ele_idx] = std::forward<AnnotationElement>(element);
 }
+
+void AnnotationData::DeleteAnnotationElementByName(const std::string_view &annotation_elem_name)
+{
+    auto annotation_elem_iter = std::find_if(elements_.begin(), elements_.end(),
+        [&](pandasm::AnnotationElement &annotation_element) -> bool {
+        return annotation_element.GetName() == annotation_elem_name;
+    });
+    if (annotation_elem_iter != elements_.end()) {
+        (void)elements_.erase(annotation_elem_iter);
+    }
+}
 }  // namespace panda::pandasm
diff --git a/assembler/annotation.h b/assembler/annotation.h
index 80e4ba915e..8e750b4a11 100644
--- a/assembler/annotation.h
+++ b/assembler/annotation.h
@@ -61,6 +61,8 @@ public:
         elements_.push_back(std::forward<AnnotationElement>(element));
     }
 
+    void DeleteAnnotationElementByName(const std::string_view &annotation_elem_name);
+
     void SetOrAddElementByIndex(size_t ele_idx, AnnotationElement &&element);
 
 private:
@@ -363,6 +365,9 @@ public:
             case '@':
                 type = Type::METHOD_HANDLE;
                 break;
+            case '#':
+                type = Type::LITERALARRAY;
+                break;
             case '0':
             default:
                 type = Type::UNKNOWN;
diff --git a/assembler/meta.h b/assembler/meta.h
index 24735cd07b..4b501043c0 100644
--- a/assembler/meta.h
+++ b/assembler/meta.h
@@ -208,6 +208,17 @@ public:
         annotations_.insert(annotations_.end(), annotations.begin(), annotations.end());
     }
 
+    void DeleteAnnotationElementByName(std::string_view annotation_name, std::string_view annotation_elem_name)
+    {
+        auto annotation_iter = std::find_if(annotations_.begin(), annotations_.end(),
+            [&](pandasm::AnnotationData &annotation) -> bool {
+            return annotation.GetName() == annotation_name;
+        });
+        if (annotation_iter != annotations_.end()) {
+            annotation_iter->DeleteAnnotationElementByName(annotation_elem_name);
+        }
+    }
+
     void DeleteAnnotationByName(const std::string_view &annotation_name)
     {
         auto annotation_iter = std::find_if(annotations_.begin(), annotations_.end(),
@@ -219,6 +230,17 @@ public:
         }
     }
 
+    void AddAnnotationElementByName(const std::string_view &annotation_name, AnnotationElement &&element)
+    {
+        auto annotation_iter = std::find_if(annotations_.begin(), annotations_.end(),
+            [&](pandasm::AnnotationData &annotation) -> bool {
+            return annotation.GetName() == annotation_name;
+        });
+        if (annotation_iter != annotations_.end()) {
+            annotation_iter->AddElement(std::move(element));
+        }
+    }
+
     void SetOrAddAnnotationElementByIndex(size_t anno_idx, size_t ele_idx, AnnotationElement &&element)
     {
         ASSERT(anno_idx < annotations_.size());