The invention discloses a public toilet partition door control device. The public toilet partition door control device comprises a switching power supply, a motor speed reduction mechanism, a photoelectric switch, a power switch, a stripe-shaped permanent magnet, and a reed switch, the motor speed reduction mechanism is installed in a groove in the left part of the upper end of the inner side of apartition door frame, a vertical shaft rod at the upper end of a partition door and the lower end of a power output shaft of the motor speed reduction mechanism are installed together, a bearing seatis arranged on the left part of the lower end of the inner side of the partition door frame, the position, at the lower end of the partition door, of the lower part of the vertical shaft rod sleevesthe interior of a bearing inner ring of the bearing seat, the stripe-shaped permanent magnet is installed on the upper right part of the rear side end of the partition door, the reed switch is installed on the upper right part of the rear side end of the partition door frame, an opening is formed in the middle of the side end of a floor pedal squat position in a public toilet partition from top tobottom, the photoelectric switch is installed in the opening, a control circuit is further arranged, and the switching power supply, the power switch, and the control circuit are connected with the motor speed reduction mechanism, the photoelectric switch and the reed switch through wires. According to the public toilet partition door control device, automatic control is achieved, more hygienic is achieved, and the probability of people being infected with pathogenic bacteria during going to a toilet is decreased.