The invention discloses a mousetrap. The mousetrap comprises a mouse luring chamber and a mouse trapping chamber, wherein the mouse luring chamber and the mouse trapping chamber are designed integrally and are separated from each other by virtue of a clapboard; the mouse luring chamber comprises a guide rod, an automatic door, a clamping frame, a bait box, a pedal, and a first cross bar; the mouse trapping chamber comprises a mouse guide passage, a first door, a second door, an outer frame, a motor, a take-up pulley, a stay wire, and a mouse storage chamber; and the mouse storage chamber comprises a third door and a stop lever. The mousetrap disclosed by the invention has the following beneficial conditions: the structure is novel, the operation is convenient, mouse trapping is performed automatically, the trapping of multiple mice can be performed, the collecting effect of trapped mice is good, and the mouse trapping effect is good.