Pen holding and controlling ability trainer

The utility model relates to the technical field of writing practice tools, in particular to a pen holding and controlling ability trainer which comprises a fixing seat, the fixing seat comprises a U-shaped seat and a side plate, a triangular prism pen holder is fixed on the outer side of the side plate, a thumb sliding seat and an index finger sliding seat are fixed on the two side walls of the triangular prism pen holder respectively, and the thumb sliding seat and the index finger sliding seat are arranged on the U-shaped seat. A thumb sliding block is installed in the thumb sliding seat in a sliding mode, an index finger sliding block is installed in the index finger sliding seat in a sliding mode, a handheld plate is fixed to the end of the triangular prism pen holder, a three-finger compression ball is fixed to the face, facing the triangular prism pen holder, of the handheld plate, and a rebound plate is hinged to the side wall of one end of the U-shaped seat. The pen has the advantages that through th