The invention discloses an automatic installation equipment of a motor bearing. The installation equipment is technically characterized b comprising a workbench, first and second bearing positioning seats are arranged on the workbench, a rotor positioning seat is arranged between the first and second bearing positioning seats and connected with a bearing stamping device, the bearing stamping device comprises a shoe plate, a pressure bar is arranged in the middle of the shoe plate, the two ends of the pressure bar are connected to the first bearing positioning seat and a first hydraulic cylinder respectively, and a support is arranged in a lateral upper portion of the workbench, and provided a bearing conveyor for conveying the bearing onto the first and second bearing positioning seats respectively. Each time before stamping of the bearing, the bearing conveyer can mount bearings on the first and second bearing positioning seats respectively, feeding is automatic, and the integral bearing installation efficiency is improved.