The invention provides an automobile frame, and relates to the technical field of automobiles. The automobile frame is assembled by modules of a frame front section, a frame front suspension section,a frame middle section, a frame rear suspension section and a frame rear section. The modules can be manufactured separately, and the production efficiency is improved. The modules can further be usedin multiple automobile models, and the development cost and cycle are reduced; the automobile frame is provided with two main longitudinal beams which are parallel to each other and a plurality of transverse beams disposed on the main longitudinal beams; and the main longitudinal beams in the frame front section, the frame middle section, the frame rear suspension section and the frame rear section are square tubes. A heavy girder structure is not adopted in the automobile frame, the automobile frame is manufactured by more square tubes, the weight is lighter, and the fuel consumption of a whole automobile is reduced.