diff --git a/scripts/md_to_blocks.py b/scripts/md_to_blocks.py
index 5d66091..7f177c4 100644
--- a/scripts/md_to_blocks.py
+++ b/scripts/md_to_blocks.py
@@ -15,6 +15,9 @@ TEXT_BLOCK = 2
 CODE_BLOCK = 14
 PREFIX = 'ecc_'
 
+# 全局表格计数器：每个表格用唯一 ID 前缀，避免多表格时 block_id 冲突
+_table_counter = 0
+
 LANG_CODES = {
     '': 1, 'text': 1, 'plain': 1,
     'bash': 7, 'sh': 7, 'shell': 7,
@@ -87,6 +90,7 @@ def split_row(line):
 
 def parse_table(lines, start_idx):
     """Parse a markdown table. Returns (blocks, end_idx) or (None, start_idx)."""
+    global _table_counter
     i = start_idx
     headers = []
     has_header = False
@@ -115,8 +119,10 @@ def parse_table(lines, start_idx):
             data_rows.append(row)
         i += 1
 
-    # No header case: first line was a data row
-    if not has_header:
+    # 表头行必须作为第一行保留（飞书 header_row=True 时首行即表头）
+    if has_header:
+        data_rows.insert(0, headers)
+    else:
         data_rows.insert(0, first_cells)
 
     if not data_rows:
@@ -127,7 +133,8 @@ def parse_table(lines, start_idx):
 
     # Build nested blocks
     blocks = []
-    table_id = f'{PREFIX}t0'
+    table_id = f'{PREFIX}t{_table_counter}'
+    _table_counter += 1
     cell_ids = []
 
     # Table container
@@ -150,8 +157,8 @@ def parse_table(lines, start_idx):
     for row_idx, row in enumerate(data_rows):
         for col_idx in range(num_cols):
             cell_text = row[col_idx] if col_idx < len(row) else ''
-            cell_id = f'{PREFIX}t0r{row_idx}c{col_idx}'
-            text_id = f'{PREFIX}t0r{row_idx}c{col_idx}t'
+            cell_id = f'{table_id}r{row_idx}c{col_idx}'
+            text_id = f'{table_id}r{row_idx}c{col_idx}t'
             cell_ids.append(cell_id)
 
             is_header_cell = has_header and row_idx == 0