The invention relates to a synthetic fiber leather auxiliary processing textile machinery. The synthetic fiber leather auxiliary processing textile machinery comprises a bottom plate, a material placing device and a perforating device; the perforating device is mounted in the middle of the bottom plate, the material placing device is arranged on the outer side of the perforating device, the material placing device is mounted on the bottom plate, the material placing device comprises a mounting frame, a driving material placing roller, an auxiliary material placing roller, a connection frame and a rotary motor, the perforating device comprises a supporting frame, a power mechanism and a perforating mechanism, and the power mechanism comprises a working frame, a working motor, a driving gear, a driven gear, a rotary shaft, an adjusting block, a rotary plate, a concave boss and a rotary round plate. The synthetic fiber leather auxiliary processing textile machinery can solve the problemsof poor continuity, low working efficiency and poor stability exists in the existing leather perforating process, can achieve the function that the leather is automatically perforated, and has the advantages of continuous operation, high working efficiency and good stability.