Amphibious snake-like robot

The invention relates to a robot mechanism, in particular to an amphibious snake-like robot which comprises a plurality of modules; all the modules can be connected in a relative rotating way; one of every two adjacent modules can horizontal deflect and pronely swing relative to the other. The robot not only can move on the land but also can move in water, and is not restricted by environmental factors; in the land environment, the robot can realize stable movement when landing on single wing or double wings; when in water, the robot can move no matter the wings are in any directions; each module is provided with three freedom degrees, and can move flexibly; waterproof protective covers are arranged among the modules, so that the sealing performance is good and water does not enter the modules; and a reverse plate is fixedly connected with a connecting plate through a step-type cone structure, thereby realizing the freedom degree that the reverse plate can rotate around the center.