Portable safety hook

The utility model relates to a lifting appliance, in particular to a portable safety lifting hook. The lifting hook solves the problems of low operation efficiency and poor operation safety when the existing lifting hook is used for lifting operation. A portable safety lifting hook comprises a U-shaped lifting frame, a left circular lantern ring, a right circular lantern ring, a left circular sleeve, a right circular sleeve, a bolt shaft, a circular baffle, a guide rod, a first compression spring, a U-shaped lock frame, a supporting shaft, a limiting rod, a second compression spring, a motor,a semi-cylindrical transmission block and a remote control switch. Wherein the opening of the U-shaped hanging bracket is downward; a first left boss is arranged on the upper portion of the outer sideface of the left circular lantern ring in an extending mode, and the upper surface of the first left boss is fixed to the left end face of the U-shaped hanging bracket. A first right boss is arrangedon the upper portion of th