Abstract:A theoretical basis is pointed out in this article that the present guideblock is absolutely deviating pull and deviating wear and tear in operation,causing the guided block coming off from the wheel easily, A method ofremoving the deviating wear and tear is calculated. Based on this, a new typeof guide block is designed and made as well as put into operation, whichshows that the innormal wear and tear is removed indeed and the problemthat the guided cable tends to come off from the wheel has been solved effectively.