Host machine beam having elevator weighing function

The utility model discloses a host machine beam having an elevator weighing function. The host machine beam comprises a body, wherein two groups of mounting holes and two groups of rope holes are formed in the upper surface of the body; the two groups of mounting holes are parallel in the width direction of the body; the two groups of rope holes are parallel in the length direction of the body; a Hall sensor is arranged in one group of mounting holes through a bracket; four shock pads are arranged at the two ends of the two groups of rope holes respectively; a guide rail mounting frame is arranged at the side end of the length direction of the body; a tractor is arranged at the upper ends of the four shock pads. According to the host machine beam, the Hall sensor is arranged on the host machine beam; when the tractor is used for driving a lift car to move, the lift car is used for applying force to the tractor through a steel wire rope; the tractor is arranged on the four shock pads, so that four points of the host machine beam are stressed uniformly, deflection is avoided, the influence on the accuracy of the Hall sensor arranged on the host machine beam is avoided, the practical load of an elevator can be reflected practically, and the elevator runs smoothly.