A disposable anti-tampering lock catch is an integrated piece and comprises a handle, a main tearing portion, a locking portion, a limiting portion and an auxiliary tearing arm. A first tearing structure which cannot be restored after being torn is arranged on the main tearing portion. The auxiliary tearing arm is provided with a second tearing structure, wherein when the disposable anti-tampering lock catch is opened, both the first tearing structure and the second tearing structure are torn, and the shape of the auxiliary tearing arm is deformed after being torn and cannot be reset.