Ship high-stress joint structure

The invention discloses a ship high-stress joint structure which comprises a horizontally-arranged platform plate, longitudinal cabin wall plates vertically arranged on the platform plate in the longitudinal direction, oblique side plates obliquely arranged on the intersections of the platform plate and the longitudinal cabin wall plates, rib plates perpendicular to the platform plate and the longitudinal cabin wall plates, and wrist plates fixedly connected with the lower surfaces of the rib plates and the platform plate. The lower ends of the longitudinal cabin wall plates stretch out from the connecting positions of the longitudinal cabin wall plates and the platform plate, and cutting grooves used for enabling the longitudinal cabin wall plates to penetrate through are formed in the corners of the rib plates. According to the ship high-stress joint structure, the structure is simple, on-site manufacturing and mounting are convenient, the lower ends of the longitudinal cabin wall plates stretch out from th