Maintenance operation platform for constructional engineering machinery

The invention discloses a maintenance operation platform for a constructional engineering machinery. The maintenance operation platform comprises a bearing protection frame, a first motor, a support assembly, a first direction adjusting plate, a second direction adjusting plate and an operation flat plate; a concave cavity is formed in the middle of the bearing protection frame, the first motor isarranged in the middle of the bearing protection frame, the support assembly is rotationally connected with the first motor, the first direction adjusting plate and the second direction adjusting plate are arranged at the top of the support assembly, and the operation flat plate is arranged between the first direction adjusting plate and the second direction adjusting plate; the support assemblycomprises a bearing plate, first hydraulic cylinders are symmetrically arranged on the left side and the right side of the top of the bearing plate, a strip-shaped plate is connected with the tops ofthe output ends of the firs