A pulley type tower head clamp mainly solves the problems that an existing tackle is low in hanging point, an overhead ground wire can not be lifted in place, and installation is difficult. The tower head clamp comprises a main beam, oblique beams, a base, pulley grooves, fixed pulleys, bolts, a fastening lead screw, right-angle buckle plates and fastening bolted caps. According to the pulley type tower head clamp, a tackle hanging point can be lifted, an overhead ground wire of a transmission line can be smoothly installed and detached, the work completion rate is guaranteed to the maximum degree, physical output of personnel is reduced, operation links of traditional operation are reduced, operation time is saved, and work efficiency is improved.