A mousetrap includes a rotary member and a trap bucket. The rotary member includes a bait stand, a first torsion shaft, and a second torsion shaft. Each of the first torsion shaft and the second torsion shaft includes a first connection portion, a convex portion upwardly bulging from the first connection portion, a concave portion downwardly denting from the convex portion, and a second connection portion connected to the concave portion, and be on a straight line with the first connection portion. When a mouse reaches the convex portion of the first torsion shaft or the second torsion shaft, the rotary member rotates, and the mouse falls into the trap bucket.一種捕鼠器,包括一旋轉件及一陷阱桶。該旋轉件包括一誘餌放置架、一第一扭轉桿及一第二扭轉桿。該第一及第二扭轉桿均包括一第一連接部、一自該第一連接部向上凸起形成的凸部、一自該凸部向下凹陷形成的凹部及一與該凹部相連且與該第一連接部在一條直線上的第二連接部。當老鼠到達該第一或第二扭轉桿的凸部時,該旋轉件旋轉,老鼠掉入該陷阱桶內。10‧‧‧捕鼠器100‧‧‧旋轉件110‧‧‧誘餌放置架112‧‧‧收容腔115‧‧‧第一端118‧‧‧第二端120、130‧‧‧扭轉桿122、132‧‧‧第一連接部124、134‧‧‧凸部126、136‧‧‧凹部128、138‧‧‧第二連接部150、160‧‧‧螺母200‧‧‧陷阱桶210‧‧‧桶體211‧‧‧上邊緣212、216‧‧‧支撐部213、218‧‧‧通孔215、219‧‧‧通道260‧‧‧底部286‧‧‧報警模組290‧‧‧黏貼層
