The invention discloses a portable electronic product fixing device, which comprises a fixing base, a fixing cylinder is installed vertically above the fixing base, a movable rod is inserted inside the fixing cylinder, and the two side walls of the bottom end of the movable rod There are two block grooves arranged symmetrically on the top, and second springs are installed in the two block grooves, and wedge-shaped blocks are installed at the opposite ends of the two second springs. A plurality of card slots are symmetrically opened on the wall, and the card slots and wedge-shaped blocks cooperate with each other. A telescopic rod is installed on the side wall on the top side of the movable rod, and a fixed plate is installed on the end of the telescopic rod far away from the movable rod. Two guide post holes are symmetrically opened inside the fixing plate. The invention is simple in structure, easy to use, and changes the original soft fixing method to rigid fixing, so that the electronic product can be stably fixed on the bracket, and at the same time, it is convenient for storage and portability, and improves the user experience.