diff --git a/docs/changes.md b/docs/changes.md
index 6cc6f70e4..0066637e4 100644
--- a/docs/changes.md
+++ b/docs/changes.md
@@ -5,6 +5,7 @@
   * 完善list_view并给edit_ex增加水平滚动条(感谢兆坤提供补丁)
   * 完善注释(感谢兆坤提供补丁)
   * 增加函数 tk_cond_var_clear
+  * 完善 ubjson (感谢林福提供补丁)
 
 2025/02/17
   * 完善样式(感谢兆坤提供补丁)
diff --git a/src/ubjson/ubjson_const.h b/src/ubjson/ubjson_const.h
index fbf9ebbef..a3a48d2b1 100644
--- a/src/ubjson/ubjson_const.h
+++ b/src/ubjson/ubjson_const.h
@@ -51,7 +51,7 @@ typedef enum _ubjson_marker_t {
   UBJSON_MARKER_OBJECT_END = '}',
 
   /* container optimized format */
-  UBJSON_MARKER_CONTAINER_TYPE = '&',
+  UBJSON_MARKER_CONTAINER_TYPE = '$',
   UBJSON_MARKER_CONTAINER_COUNT = '#',
 } ubjson_marker_t;
 
diff --git a/tests/ubjson_parser_test.cc b/tests/ubjson_parser_test.cc
index 2e082b3fe..d5834dcd6 100644
--- a/tests/ubjson_parser_test.cc
+++ b/tests/ubjson_parser_test.cc
@@ -272,6 +272,27 @@ TEST(UBJsonParser, ubjson_writer_write_kv_value) {
   tk_object_unref(obj);
 }
 
+TEST(UBJsonParser, optimized_array) {
+  uint8_t buff[256];
+  uint8_t data[] = {0x7b, 0x55, 0x3,  0x6f, 0x70, 0x72, 0x55, 0x1,  0x55, 0x4,  0x6e, 0x61, 0x6d,
+                    0x65, 0x53, 0x55, 0x3,  0x74, 0x6f, 0x6d, 0x55, 0x5,  0x64, 0x61, 0x74, 0x61,
+                    0x73, 0x5b, 0x24, 0x55, 0x23, 0x55, 0x3,  0x1,  0x2,  0x3,  0x7d};
+  value_t v;
+  tk_object_t* obj = NULL;
+
+  ubjson_dump(data, sizeof(data));
+
+  obj = object_from_ubjson(data, sizeof(data));
+
+  ASSERT_EQ(tk_object_get_prop_int(obj, "opr", 0), 1);
+  ASSERT_STREQ(tk_object_get_prop_str(obj, "name"), "tom");
+  ASSERT_EQ(tk_object_get_prop_int_by_path(obj, "datas.[0]", -1), 1);
+  ASSERT_EQ(tk_object_get_prop_int_by_path(obj, "datas.[1]", -1), 2);
+  ASSERT_EQ(tk_object_get_prop_int_by_path(obj, "datas.[2]", -1), 3);
+
+  tk_object_unref(obj);
+}
+
 TEST(UBJsonParser, optimized_array_uint8) {
   uint8_t buff[256];
   uint8_t data[] = {100, 200, 255};
@@ -302,6 +323,7 @@ TEST(UBJsonParser, optimized_array_uint8) {
 
   ubjson_dump(wb.data, wb.cursor);
 }
+
 TEST(UBJsonParser, optimized_array_int32) {
   uint8_t buff[256];
   int32_t data[] = {100, 200, 300};
diff --git a/tests/ubjson_writer_test.cc b/tests/ubjson_writer_test.cc
index eaaa449c0..4bfa5b96c 100644
--- a/tests/ubjson_writer_test.cc
+++ b/tests/ubjson_writer_test.cc
@@ -357,6 +357,28 @@ TEST(UBJsonWriter, kv_wstring_len) {
   ASSERT_EQ(wb.cursor, 7u);
 }
 
+TEST(UBJsonWriter, optimized_array) {
+  uint8_t buff[256];
+  uint8_t data[] = {1, 2, 3};
+  wbuffer_t wb;
+  ubjson_writer_t ub;
+  wbuffer_init(&wb, buff, sizeof(buff));
+  ubjson_writer_init(&ub, (ubjson_write_callback_t)wbuffer_write_binary, &wb);
+
+  ASSERT_EQ(ubjson_writer_write_object_begin(&ub), RET_OK);
+  ASSERT_EQ(ubjson_writer_write_kv_int(&ub, "opr", 1), RET_OK);
+  ASSERT_EQ(ubjson_writer_write_kv_str(&ub, "name", "tom"), RET_OK);
+  ASSERT_EQ(ubjson_writer_write_key(&ub, "datas"), RET_OK);
+  ASSERT_EQ(ubjson_writer_write_array_uint8(&ub, data, ARRAY_SIZE(data)), RET_OK);
+  ASSERT_EQ(ubjson_writer_write_object_end(&ub), RET_OK);
+
+  uint8_t ubjdata[] = {0x7b, 0x69, 0x3,  0x6f, 0x70, 0x72, 0x69, 0x1,  0x69, 0x4,  0x6e, 0x61, 0x6d,
+                       0x65, 0x53, 0x69, 0x3,  0x74, 0x6f, 0x6d, 0x69, 0x5,  0x64, 0x61, 0x74, 0x61,
+                       0x73, 0x5b, 0x24, 0x55, 0x23, 0x69, 0x3,  0x1,  0x2,  0x3,  0x7d};
+  ASSERT_EQ(wb.cursor, sizeof(ubjdata));
+  ASSERT_EQ(memcmp(buff, ubjdata, sizeof(ubjdata)), 0);
+}
+
 TEST(UBJsonWriter, optimized_array_uint8) {
   uint8_t buff[256];
   uint8_t data[120];