Lifting weight force measuring device and winch

The utility model relates to a lifting weight force measuring device and a winch. The lifting weight force measuring device comprises a tension sensor and a sliding rotation-stopping assembly; a pulley yoke is fixedly arranged on the upper end of the tension sensor; a fixed pulley of which the axis extends in the front-and-back direction is rotatably arranged on the pulley yoke; the sliding rotation-stopping assembly comprises a fixed seat and a sliding seat in sliding rotation-stopping fit with the fixed seat; the fixed seat is fixedly arranged on the frame; the sliding seat is fixedly connected with the lower end of the tension sensor and slides in the axial direction of a winding drum. When the lifting weight force measuring device is used, a lifting steel wire rope is wound around the fixed pulley and then a weight object is lifted, the stress of the lifting steel wire rope is transferred to the tension sensor through the fixed pulley, and the tension sensor outputs a resistance signal according to the st