diff --git a/em-oop/src/EmployeeData.java b/em-oop/src/EmployeeData.java
index b2be6e5..0cbdc7c 100644
--- a/em-oop/src/EmployeeData.java
+++ b/em-oop/src/EmployeeData.java
@@ -48,6 +48,10 @@ public class EmployeeData {
 	}
 
 	public void setNmEmployee(String nmEmployee) {
+		if (nmEmployee == null || nmEmployee.strip().length() == 0) {
+			System.out.println("社員名が空のため設定できませんでした");
+			return;
+		}
 		this.nmEmployee = nmEmployee;
 	}
 
@@ -86,5 +90,4 @@ public class EmployeeData {
 	public static int getEmpCount() {
 		return empCount;
 	}
-
 }
diff --git a/em-oop/src/Main.java b/em-oop/src/Main.java
index da2c616..bdb4f4d 100644
--- a/em-oop/src/Main.java
+++ b/em-oop/src/Main.java
@@ -55,6 +55,16 @@ public class Main {
 		}
 		System.out.println("現在の社員のデータ件数：" + EmployeeData.getEmpCount() + "件");
 
+		System.out.println();
+
+		//nullおよび前後の空白を取り除いた結果が空文字チェック
+		EmployeeData emp = new EmployeeData("10000", "デフォルト", "ヤマダタツヤ", "yamada@hoge.jp", "aaa", "10");
+		System.out.println(emp);
+		emp.setNmEmployee(null);
+		System.out.println(emp);
+		emp.setNmEmployee("  　　");
+		System.out.println(emp);
+
 	}
 
 }