The invention provides a vertical anti-freezing strain clamp with a hydraulic combined veneer-type drainage plate. The strain clamp comprises a steel anchor (1), a strain clamp body (2), a drainage plate assembly (3) and a drainage clamp (8), wherein the steel anchor (1) is inserted and connected to the tail end of the strain clamp body (2); the drainage plate assembly (3) and the strain clamp body (2) adopts a split structure; the steel anchor (1) comprises a pull ring part and a rod body part; the rod body part comprises a straight rod section and a crimped section; a plurality of annular grooves are formed in the surface of the crimped section; the axial cross sections of the annular grooves are concave-arc-shaped; and the drainage plate assembly (3) adopts a combined structure and comprises a drainage plate base (11) and a draw box (10). According to the strain clamp, a mature hydraulic connecting pipe is adopted and a crimping process is mature, so that the crimping quality is easy to guarantee; the problem in the fact that an assembling stringing strain clamp passes through a stringing device such as a pulley or the like is solved; and the drainage plate is connected to the outer side of an aluminum pipe in a crimped manner, so that the area of contact between the drainage plate and the aluminum pipe of the strain clamp is ensured and the electric property of the strain clamp is guaranteed.