The invention relates to a water lubricating stern bearing adhesion-sliding phenomenon testing system. The water lubricating stern bearing adhesion-sliding phenomenon testing system comprises a driving unit, a loading unit, a water filling unit, a measuring unit, and an image unit. The driving unit comprises a motor, a coaxial transmission component, and a glass sleeve. The loading unit comprises a support, a balance lever, a weight, and a bearing test block. The glass sleeve and the bearing test block are contacted with each other to form a friction pair. The water filling unit comprises a water tank, a pump, and a water spraying pipe. The measuring unit comprises a rotation speed torque device, a three-component force transducer, a vibration sensor, and a sound sensor. The image unit comprises a high speed camera, a hard bar mirror, and an adjustable lamp. The water spraying pipe, the high speed camera, and the hard bar mirror are pointed at the friction pair, and the working surface of the bearing test block is provided with a mark point. The visualization test, and the noise, vibration, and friction force recording of the water lubricating stern bearing adhesion-sliding phenomena are realized, and the test and the research of the adhesion-sliding phenomena under conditions of different lubricating waters and different rotation speeds are realized, and therefore the testing system is closer to an actual motion rule of a shaft and the bearing.