Smart servo angle tightening wrench is a novel type of smart servo tightening tool designed to alter the connection between bolts and nuts. It features a memory function that retains preset torque values and automatically adjusts the torque to ensure the fastening integrity of bolts and nuts. The application scope of the smart servo angle tightening wrench is exceedingly broad, encompassing household appliances, automobiles, power sources, and aerospace equipment, among others.