diff --git a/src/components/common/textbox/TextboxInput.tsx b/src/components/common/textbox/TextboxInput.tsx
index 38328463..3bf3aac4 100644
--- a/src/components/common/textbox/TextboxInput.tsx
+++ b/src/components/common/textbox/TextboxInput.tsx
@@ -3,6 +3,7 @@ import styled from '@emotion/styled';
 
 import Icons from '@/assets/svg/index';
 import { theme } from '@/styles/theme';
+import checkDateFormat from '@/utils/checkDateFormat';
 import checkTimeFormat from '@/utils/checkTimeFormat';
 import dotFormatDate from '@/utils/dotFormatDate';
 import dotFormatTime from '@/utils/dotFormatTime';
@@ -19,9 +20,15 @@ function TextboxInput({ variant, dateValue, onChange, dateTextRef }: TextboxInpu
 		if ((variant === 'date' || variant === 'smallDate') && onChange) {
 			const formattedInput = dotFormatDate(e.target.value);
 			e.target.value = formattedInput;
+
 			if (formattedInput && formattedInput.length > 9) {
-				const valueDate = new Date(formattedInput);
-				onChange(valueDate);
+				if (!checkDateFormat(formattedInput)) {
+					alert('유효한 날짜가 아님');
+					e.target.value = '';
+				} else {
+					const valueDate = new Date(formattedInput);
+					onChange(valueDate);
+				}
 			}
 		}
 
diff --git a/src/utils/checkDateFormat.ts b/src/utils/checkDateFormat.ts
new file mode 100644
index 00000000..feff1b4e
--- /dev/null
+++ b/src/utils/checkDateFormat.ts
@@ -0,0 +1,13 @@
+/** 입력된 날짜가 2000년 - 9999년인지, 01.01 - 12.31 인지 검사 */
+const checkDateFormat = (date: string) => {
+	const [year, month, day] = date.split('.').map(Number);
+
+	if (year >= 2000 && year <= 9999 && month >= 1 && month <= 12 && day >= 1 && day <= 31) {
+		const maxDays = new Date(year, month, 0).getDate();
+		if (day <= maxDays) {
+			return true;
+		}
+	}
+	return false;
+};
+export default checkDateFormat;