The utility model discloses a mechanical damping pull rod, and aims to conquer the disadvantage that the existing damping rod formed by a thin-wall metal pipe diameter expansion method is suitable for a pressing rod structure, but is not suitable for damping needs of a pull rod structure. The mechanical damping pull rod comprises a steel pipe and a connecting rod, wherein one end of the inner hole of the steel pipe is a conical hole; the other end of the inner hole of the steel pipe is a straight hole; the inner diameter of the straight hole is equal to the diameter of the small end of the conical hole; the large end of the conical hole of the steel pipe is fixedly connected with a joint I; one end of the connecting rod is fixedly provided with a cone; the other end of the connecting rod is fixedly provided with a joint II; the size of the outer circle of the cone is identical to that of the conical hole of the steel pipe; one end of the joint II is a stepped shaft, and is matched with the straight hole end of the steel pipe in a sliding manner; the joint I is provided with a radial pressure relief hole which is communicated with the inner hole of the steel pipe. The mechanical damping pull rod has the beneficial effects of simple structure, reliable performance, convenience in use, strong adaptability to use environment, simple manufacture method and low cost.