To provide crimping pliers that are configured to improve the crimping work of crimp terminals for use in connecting electric wire.

Semi-automatic crimping pliers 1 are provided with a rotary multi-groove crimp terminal receiver 4 and a home position positioning device 6 in a lower pressing lever 2 with a shape of the crimping pliers, and provided with a shift lever 5 in an upper pressing lever 3, and also configured by a crimping protrusion 3a. If a crimping operation is performed by loading the connected crimp terminals in a terminal receiving recess of the rotary multi-groove crimp terminal receiver 4, the crimping is completed like a crimped terminal by grasping an upper handle 1a and a lower handle 1b of the semi-automatic crimping pliers. When the upper handle and the lower handle are opened and returned, the claw of a shift lever 5 enters the terminal receiving recess of the rotary multi-groove crimp terminal receiver 4. When the upper handle and the lower handle are fully opened, the terminal receiving recess is sent by one and a new terminal of the connected crimp terminals is loaded in the crimping position. Accordingly, it is not necessary to load the crimp terminals to the crimping pliers by picking up the crimp terminals one by one, and thereby the time of the crimping operation can be greatly reduced.