An adjusting-free clamp pliers jaw, the first and second pliers bodies rotating on the base and the first and second pliers bodies being mirror symmetrical, the clamping rim is provided on both the first and second pliers bodies, the extrusion notch is provided on both the first and second pliers bodies, the clamping rims on the first and second pliers bodies are jointly used for clamping a clamp, and the extrusion notches on the first and second pliers bodies are used for jointly pinching off the clamp. The invention brings following benefits that: the clamping rims and the extrusion notches are arranged on the first and second pliers bodies, so that a clamping and breaking of the clamp from the extrusion can are realized and both the crimping and shearing functions can be integrated together without a conversion operation, and an operation of this device is simple, convenient and quick.