The invention relates to an profile hole assemble boring machine, which comprises a machine tool base, a principal axis motor, a gyrus worktable and a chucking mechanism which are arranged on the machine tool base. A clamp spring groove and an inner-outer chamfer angle and outside chamfer angle boring feed mechanism are arranged one side of the machine tool base. The rotor of the principal axis motor is directly connected with the principal axis. The invention adopts the direct connection transmission of the motor rotor and the principal axis to improve the processing precision. Because of without the belt unloading system, the vibration of the machine tool due to belt chattering is avoided, thereby reducing breakdown and avoiding the boring head heating-up phenomenon due to bearing heating. Because the clamp spring groove and the inner-outer rotating angle boring feed mechanism are arranged on the machine tool base, the precise processing of a piston profile hole, the clamp spring groove, the inner chamfer angle and outer chamfer angle are realized, thereby reducing the processing sequence, decreasing the processing error and improving the processing precision.