The utility model provides a grabbing polish rod smashing-preventing device. The grabbing polish rod smashing-preventing device comprises a body, a clamping rod and a force application rod, wherein a first U-shaped groove and a second U-shaped groove are formed in the body in the vertical direction, the opening directions of the two U-shaped grooves are perpendicular, the lower portion of the first U-shaped groove is provided with a hole channel communicated with the second U-shaped groove, a pin shaft penetrates through two corresponding lateral walls of the first U-shaped groove, and the axis direction of the pin shaft is the same as the opening direction of the second U-shaped groove; the second U-shaped groove is a through groove, and a well mouth polish rod is sleeved with the second U-shaped groove. The clamping rod can be movably contained in the hole channel, a clamping hole is formed in the outer wall of the clamping rod, and an abutting portion is formed at one end of the clamping rod and can abut against the well mouth polish rod. The force application rod is rotationally connected with the pin shaft, one end of the force application rod can be inserted into the clamping hole, and the other end of the force application rod can extend out of the first U-shaped groove. The well mouth polish rod can be sleeved with the second U-shaped groove and clamped at the well mouth polish rod through the clamping rod. When a worker works, possible accidents caused when the worker grabs the polish rod by accident can be avoided through the grabbing polish rod smashing-preventing device, and the on-site safe management level is improved.