diff --git a/history/005b_letter_test/src/main/java/com/gitee/drinkjava2/frog/brain/organ/Move2.java b/history/005b_letter_test/src/main/java/com/gitee/drinkjava2/frog/brain/organ/Move2.java
new file mode 100644
index 0000000..46e6cdb
--- /dev/null
+++ b/history/005b_letter_test/src/main/java/com/gitee/drinkjava2/frog/brain/organ/Move2.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2018 the original author or authors. 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by
+ * applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
+ * OF ANY KIND, either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ */
+package com.gitee.drinkjava2.frog.brain.organ;
+
+import com.gitee.drinkjava2.frog.Env;
+import com.gitee.drinkjava2.frog.brain.Cuboid;
+import com.gitee.drinkjava2.frog.brain.Organ;
+
+/**
+ * Move is a special organ the action move photon go to next cell
+ * 
+ * Move这个器官会让Cell中的光子沿着它的运动方向走到下一格
+ * 
+ * @author Yong Zhu
+ */
+public class Move2 extends Organ {
+	private static final long serialVersionUID = 1L;
+
+	public Move2() {
+		super();
+		this.shape = new Cuboid(11, 0, 0,  Env.FROG_BRAIN_XSIZE-11 , Env.FROG_BRAIN_YSIZE, 20);
+		this.organName = "MOVE2";
+		this.type = Organ.MOVE; // MOVE类型的细胞会保持光子的直线运动，并不在细胞上挖洞
+		this.allowVary = false;// 不允许变异
+		this.allowBorrow = false;// 不允许借出
+	}
+
+}