diff --git a/lib/core/Handles/HandlesBody.py b/lib/core/Handles/HandlesBody.py
index 740ab34..07a9550 100644
--- a/lib/core/Handles/HandlesBody.py
+++ b/lib/core/Handles/HandlesBody.py
@@ -41,11 +41,20 @@ class BodyHandle(BaseHandle):
                 elif isinstance(Node, ast.While):
                     self.Trans.WhileHandler._HandleWhileLlvm(Node)
                 elif isinstance(Node, ast.Break):
-                    if Gen.loop_break_targets:
-                        Gen.builder.branch(Gen.loop_break_targets[-1])
+                    if not Gen.loop_break_targets:
+                        # fail-fast：循环 / match-case 之外的 break 无处可跳，
+                        # 静默忽略只会让"提前退出"变成无声无效果（不兜底）
+                        from lib.core.LLVMCG.FuncGen import FailFastError
+                        raise FailFastError(
+                            "break 只能用在循环或 match-case 体内（当前没有可跳出的目标）")
+                    Gen.builder.branch(Gen.loop_break_targets[-1])
                 elif isinstance(Node, ast.Continue):
-                    if Gen.loop_continue_targets:
-                        Gen.builder.branch(Gen.loop_continue_targets[-1])
+                    if not Gen.loop_continue_targets:
+                        # fail-fast：循环之外的 continue 无处可跳（同上）
+                        from lib.core.LLVMCG.FuncGen import FailFastError
+                        raise FailFastError(
+                            "continue 只能用在循环体内（当前没有可继续的循环）")
+                    Gen.builder.branch(Gen.loop_continue_targets[-1])
                 elif isinstance(Node, ast.With):
                     self.Trans.WithHandler._HandleWithLlvm(Node)
                 elif isinstance(Node, ast.ClassDef):