Resistance value measuring tool for laser resistor trimming machine

The utility model discloses a resistance value measuring tool for a laser resistor trimming machine, which comprises a bridging probe frame and a probe plate, the probe plate is a circuit board with a circular hole in the middle, a plurality of probe plugging areas are uniformly arranged along the circumferential direction of the circular hole, and the heads of the probe plugging areas face the center of the circular hole. The tail portions of all the probe inserting areas are connected to leading-out ends located at the edge of the circuit board through copper wire grooves and correspond to the leading-out ends in a one-to-one mode, the bridging probe frame comprises probes, the tail portions of the probes are connected with a horizontal connecting rod, and the horizontal connecting rod is provided with at least two fixing rotary knobs arranged in the length direction of the horizontal connecting rod. The horizontally arranged probe arm is provided with a first sliding groove extending in the length directio