diff --git a/gui/widgets/production_id_input.py b/gui/widgets/production_id_input.py
index 9fc6200..1687dca 100644
--- a/gui/widgets/production_id_input.py
+++ b/gui/widgets/production_id_input.py
@@ -4,6 +4,7 @@
 Production ID 输入控件
 
 多行文本输入框，用于输入 Production ID 列表。
+支持内容溢出时自动显示滚动条。
 """
 
 import tkinter as tk
@@ -16,23 +17,44 @@ class ProductionIdInput(ttk.Frame):
     def __init__(self, parent, placeholder="每行输入一个 Production ID", **kwargs):
         super().__init__(parent, **kwargs)
         self.placeholder = placeholder
+        self._scrollbar_visible = False
+        self._check_pending = False
 
-        # 创建文本框和滚动条
+        # 创建文本框
         self.text_widget = tk.Text(self, wrap=tk.WORD, padx=5, pady=5)
-        self.scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL, command=self.text_widget.yview)
-        self.text_widget.configure(yscrollcommand=self.scrollbar.set)
 
-        # 布局
-        self.text_widget.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
-        self.scrollbar.pack(side=tk.RIGHT, fill=tk.Y)
+        # 创建滚动条
+        self.scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL, command=self.text_widget.yview)
+        self.text_widget.configure(yscrollcommand=self._on_scroll)
+
+        # 布局 - 使用 grid 以便动态显示/隐藏滚动条
+        self.text_widget.grid(row=0, column=0, sticky="nsew")
+        self.scrollbar.grid(row=0, column=1, sticky="ns")
+
+        # 配置行列权重
+        self.grid_rowconfigure(0, weight=1)
+        self.grid_columnconfigure(0, weight=1)
 
         # 绑定事件
         self.text_widget.bind("<FocusIn>", self._on_focus_in)
         self.text_widget.bind("<FocusOut>", self._on_focus_out)
+        # 监听内容变化事件
+        self.text_widget.bind("<KeyRelease>", self._schedule_check)
+        self.text_widget.bind("<ButtonRelease-1>", self._schedule_check)
+        self.text_widget.bind("<ButtonRelease-3>", self._schedule_check)
+        self.text_widget.bind("<Configure>", self._schedule_check)
+        # 绑定粘贴事件
+        self.text_widget.bind("<<Paste>>", self._schedule_check)
+
+        # 初始隐藏滚动条
+        self.scrollbar.grid_remove()
 
         # 显示占位符
         self._show_placeholder()
 
+        # 延迟检查初始状态
+        self.after(100, self._check_scrollbar_needed)
+
     def _on_focus_in(self, event):
         """获得焦点时隐藏占位符"""
         if self.text_widget.get("1.0", "end-1c") == self.placeholder:
@@ -70,11 +92,13 @@ class ProductionIdInput(ttk.Frame):
             self.text_widget.configure(foreground="black")
         else:
             self._show_placeholder()
+        self._schedule_check()
 
     def clear(self):
         """清空内容"""
         self.text_widget.delete("1.0", tk.END)
         self._show_placeholder()
+        self._schedule_check()
 
     def append(self, production_ids: list[str]):
         """追加 Production ID 列表"""
@@ -85,8 +109,39 @@ class ProductionIdInput(ttk.Frame):
                 self.text_widget.insert(tk.END, "\n" + "\n".join(production_ids))
             else:
                 self.text_widget.insert("1.0", "\n".join(production_ids))
+        self._schedule_check()
 
     def apply_font(self, font_family: str, font_size: int):
         """应用字体设置"""
         font_spec = font.Font(family=font_family, size=font_size)
         self.text_widget.configure(font=font_spec)
+
+    def _on_scroll(self, first, last):
+        """滚动回调，更新滚动条位置"""
+        self.scrollbar.set(first, last)
+
+    def _schedule_check(self, event=None):
+        """调度滚动条检查（防抖）"""
+        if not self._check_pending:
+            self._check_pending = True
+            self.after(50, self._check_scrollbar_needed)
+
+    def _check_scrollbar_needed(self):
+        """检查是否需要显示滚动条"""
+        self._check_pending = False
+
+        # 更新界面以确保获取准确的尺寸
+        self.text_widget.update_idletasks()
+
+        # 使用 yview() 返回值判断
+        first, last = self.text_widget.yview()
+        # last < 1.0 表示内容超出了可见区域（需要滚动条）
+        needs_scrollbar = last < 1.0
+
+        if needs_scrollbar != self._scrollbar_visible:
+            if needs_scrollbar:
+                self.scrollbar.grid()
+                self._scrollbar_visible = True
+            else:
+                self.scrollbar.grid_remove()
+                self._scrollbar_visible = False