According to the locomotion method of imitating underwater creatures, bionic underwater robot can be classified into three classes: fish robot, walking underwater robot and worming underwater robot.

• 仿生水下机器人按照模仿水下生物的运动方式可分为:仿鱼水下机器人、仿多足爬行动物水下机器人和仿蠕虫水下机器人。