Mobile payment terminal with built-in bunching function

The utility model belongs to the technical field of mobile payment equipment, and particularly relates to a mobile payment terminal with a built-in bunching function, which comprises a main body, a display screen arranged on the main body, operation keys arranged on the main body, an assembly shell arranged on the back of the main body, a concave groove arranged on the back of the main body and corresponding to the assembly shell, and protruding pieces arranged on two sides of the assembly shell. A bearing seat is arranged on the back of the main body, a threaded shaft is arranged on the bearing seat, a binding piece is arranged on the threaded shaft, a fixing piece is arranged outside the assembling shell, a charging connecting wire is arranged on the binding piece, an output connecting end is arranged at one end of the charging connecting wire, and an input connecting end is arranged at the other end of the charging connecting wire; the back of the main body is provided with a terminal away from the bearing