diff --git a/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogMoves.java b/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogMoves.java
new file mode 100644
index 0000000..2f55556
--- /dev/null
+++ b/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogMoves.java
@@ -0,0 +1,79 @@
+/*
+ * 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.organ.frog;
+
+import com.gitee.drinkjava2.frog.Env;
+import com.gitee.drinkjava2.frog.Animal;
+import com.gitee.drinkjava2.frog.brain.Organ;
+import com.gitee.drinkjava2.frog.objects.Material;
+
+/**
+ * Move frog 1 unit if outputs of nerve cells active in this zone
+ */
+public class FrogMoves {
+	public static class MoveUp extends Organ {
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			if (outputActive(a)) {
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				a.y--;
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				Env.setMaterial(a.x, a.y, a.no);
+			}
+		}
+	}
+
+	public static class MoveDown extends Organ {
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			if (outputActive(a)) {
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				a.y++;
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				Env.setMaterial(a.x, a.y, a.no);
+			}
+		}
+	}
+
+	public static class MoveLeft extends Organ {
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			if (outputActive(a)) {
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				a.x--;
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				Env.setMaterial(a.x, a.y, a.no);
+			}
+		}
+	}
+
+	public static class MoveRight extends Organ {
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			if (outputActive(a)) {
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				a.x++;
+				Env.clearMaterial(a.x, a.y, Material.FROG_TAG);
+				Env.setMaterial(a.x, a.y, a.no);
+			}
+		}
+
+	}
+
+}