Integrated axle assembly and vehicle

The invention discloses an integrated axle assembly and a vehicle, relates to the technical field of vehicles, and aims at solving the problems that the quantity of gear oil in an axle housing is large, and the oil stirring efficiency is low. The integrated axle assembly comprises an axle housing, a half shaft, a speed reducer and a sealing cylinder, a mounting space is formed in the axle housing, and a first half shaft mounting hole communicated with the mounting space is formed in the axle housing; at least part of the half shaft extends into the mounting space through the first half shaft mounting hole; the speed reducer is arranged in the mounting space and is connected with the half shaft so as to drive the half shaft to rotate around the axis direction; the sealing cylinder is arranged on the peripheral wall of the half shaft in a sleeving mode, and at least part of the sealing cylinder extends into the installation space through the first half shaft installation hole and is connected with the speed reducer in a sealed mode.