diff --git a/src/types/template.ts b/src/types/template.ts
new file mode 100644
index 0000000..b8f7560
--- /dev/null
+++ b/src/types/template.ts
@@ -0,0 +1,109 @@
+// 对齐方式
+export type Align = 'left' | 'center' | 'right';
+
+// 字体大小
+export type FontSize = 'small' | 'normal' | 'large' | 'xlarge';
+
+// 条码格式
+export type BarcodeFormat = 'CODE128' | 'QR' | 'EAN13';
+
+// 基础样式
+export interface BlockStyle {
+  align?: Align;
+  fontSize?: FontSize;
+  bold?: boolean;
+  italic?: boolean;
+  underline?: boolean;
+  lineHeight?: number;
+  marginTop?: number;
+  marginBottom?: number;
+}
+
+// 列定义
+export interface Column {
+  content?: string;
+  align?: Align;
+  width?: string | number;
+  bold?: boolean;
+  header?: string;
+}
+
+// Block 类型
+export interface TextBlock extends BlockStyle {
+  type: 'text';
+  content: string;
+}
+
+export interface RowBlock extends BlockStyle {
+  type: 'row';
+  columns: Column[];
+}
+
+export interface TableBlock extends BlockStyle {
+  type: 'table';
+  columns: Column[];
+  data: string; // mustache expression
+}
+
+export interface ListBlock extends BlockStyle {
+  type: 'list';
+  data: string; // mustache expression
+  itemTemplate: Block[];
+}
+
+export interface DividerBlock extends BlockStyle {
+  type: 'divider';
+  char?: string;
+}
+
+export interface ImageBlock extends BlockStyle {
+  type: 'image';
+  src: string; // mustache expression or URL
+  maxWidth?: number;
+}
+
+export interface BarcodeBlock extends BlockStyle {
+  type: 'barcode';
+  format: BarcodeFormat;
+  data: string; // mustache expression
+  height?: number;
+}
+
+export interface SpaceBlock extends BlockStyle {
+  type: 'space';
+  lines?: number;
+}
+
+export type Block =
+  | TextBlock
+  | RowBlock
+  | TableBlock
+  | ListBlock
+  | DividerBlock
+  | ImageBlock
+  | BarcodeBlock
+  | SpaceBlock;
+
+// 页面设置
+export interface PageConfig {
+  marginTop?: number;
+  marginBottom?: number;
+}
+
+// 默认样式
+export interface DefaultStyle {
+  fontSize?: FontSize;
+  lineHeight?: number;
+  marginBottom?: number;
+}
+
+// 完整模板
+export interface Template {
+  id: string;
+  name: string;
+  description?: string;
+  width: string; // e.g., "80mm"
+  page?: PageConfig;
+  defaults?: DefaultStyle;
+  blocks: Block[];
+}