The invention relates to an improved pin-point gate plastic die which comprises a pin-point gate plastic die body. A gate material passing plate is mounted on a gate plate of the pin-point gate plastic die body; the gate material passing plate is communicated with a glue jetting opening in the pin-point gate plastic die body; the gate material passing plate takes an effect of enabling the glue jetting opening to extend and enables a parting surface of a main runner to be sunk to the bottom of a front die core so as to fulfill the aim of shortening the length of a die gating runner. According to the utility model, one gate material passing plate is additionally mounted on the conventional pin-point gate plastic die so as to enable the glue jetting opening to extend and enable the parting surface of the main runner to be sunk to the bottom of the front die core to shorten the die gating runner, thereby reducing the injection molding pressure, shortening the forming period and saving a sizing material.