The disclosure discloses a multi-functional clamp including a first clamping arm and a second clamping arm. A pressing part is disposed at a portion of the first clamping arm close to a hinge part, and a pressure receiving part is disposed at a portion of the second clamping arm close to the hinge part. The pressing part and the pressure receiving part are arranged oppositely, and a pressing structure is disposed on one surface of the pressing part facing the pressure receiving part, a pressure receiving structure is disposed on one surface of the pressure receiving part facing the pressing part. Extending arms are disposed at tail ends of the first clamping arm and the second clamping arm, and the extending arms of the first clamping arm and the second clamping arm are provided with protrusions. A clamping space is formed on an inner side of the protrusions.