The invention discloses a device for detecting contact pressure and a position distance of a double movable head vacuum arc-extinguishing chamber. The device comprises a bottom plate, a linkage-type bracket, a linkage-type bracket linear motion drive mechanism and a linkage-type bracket swing drive mechanism. The linkage-type bracket is mounted on the bottom plate and is used for lifting an arc-extinguishing chamber epoxy spindle during measurement. The linkage-type bracket can move linearly along the bottom plate and can swing up and down during the linear motion. The linkage-type bracket linear motion drive mechanism is mounted on the bottom plate and is used for driving the linkage-type bracket to perform the linear motion on the bottom plate. The linkage-type bracket swing drive mechanism is mounted on the bottom plate and is used for forcing the linkage-type bracket to swing up and down when the linkage bracket moves linearly. The device for detecting the contact pressure and theposition distance of the double movable head vacuum arc-extinguishing chamber eliminates the influence of the weight of the epoxy spindle on the pressure measurement, and the detection process is consistent with the actual use state and does not affect the performance of switches. The problems of pressure and distance detection errors caused by coaxiality deviation of the double movable head arc-extinguishing chamber and the difficulty in measuring the double movable head arc-extinguishing chamber are solved, the measurement method is optimized and the measurement efficiency is improved.