Mechanical arm capable of unlocking padlock

The utility model relates to a manipulator for unlocking a padlock, which solves the problems that the prior keys are grooved, tooth-shaped and of low stability. The utility model is characterized by consisting of a key handle (3) and a key rod (2), wherein a v-shaped manipulator (4) is arranged on one end head of the key rod (2); a claw-hand (1) is arranged on the manipulator(4); the claw-hand (1), the manipulator(4), the key rod (2) and the key handle (3) are integrated into a whole. The utility model has the advantages of good key stability, flexibility and convenience and good functions, is especially suitable for the application of unlocking padlocks.