Clasp knife

The utility model discloses a clasp knife, which comprises a knife body and a handle body, wherein a spring bar is arranged inside the handle body; a convex position is formed on the back of the spring bar, and a groove is formed in the corresponding position of the handle body; the convex position is inserted into the groove; a groove position is formed at the tail part of the handle body; the tail end of the spring bar is clamped in the groove position; and the root part of the knife body is pressed by the front end of the spring bar. The clasp knife has the advantages as follows: the clasp knife adopting the structure dispenses with a pin shaft, the assembly work is simplified, and the manufacturing cost is also lowered.