The invention discloses an anti-collision testing device for a water pool model, belonging to the technical field of ocean engineering. The testing device comprises a pressure sensor, a supporting part, a main body part and an auxiliary block, wherein the main body part is movably connected with the supporting part and is contacted with the pressure sensor; the auxiliary block is fixedly connected with the supporting part; the supporting part comprises a bracket, a ball bearing guide bushing and a fixing plate; and the main body part comprises a top collision plate, a guide rod, an elastic unit and a dowel plate. The testing device has a compact structural form, and can be used for effectively measuring the stress situation of a simulation anti-collision cushion.