The invention discloses a flow collecting strip forming machine. The flow collecting strip forming machine comprises a bottom plate, wherein a sliding block is connected to the upper surface of the bottom plate in a sliding mode; the upper end of the sliding block is connected with a material disc through a fixing frame; a flow collecting strip is wound around the outer side surface of the material disc; a pair of synchronous wheels which are arranged up and down are arranged on the front side surface of the sliding block; the synchronous wheels are connected with an output shaft of a steppingmotor; a cutting knife is arranged on one side of the synchronous wheels; a cutting air cylinder is connected above the cutting knife; a vertical plate is arranged at one end of the sliding block; asupporting plate is arranged on the front side surface of the vertical plate; a flattening block is arranged at the upper end of the supporting plate; a flattening air cylinder is connected above theflattening block; the flattening air cylinder is fixed on the front side surface of the vertical plate; and a pressing buckle is arranged at the lower end of the supporting plate. According to the flow collecting strip forming machine, a mechanical arm is used for replacing manual bending, so that the bending angle is consistent, time and labor are saved, and the working efficiency is improved; and meanwhile, the feeding size is uniform every time, bending at the same bending point is guaranteed, and the bending precision is improved.