A kind of spring wire type mouse trap,System include: a bar,Clamping bar and locking bar,Respectively by metal wire rod bending forming,Wherein this leverage contains a torque spring portion,Lengthways projection has a spring arm respectively for what its two side-line,Usually this leverage is linear in one for what,In application,It opposite can press and move the two springs arm,Keep this bar arciform in one,And the locking bar to be pivotally connected on the what clamping bar,Hook what is wherein on the bottom end of a spring arm,The clamping bar is set to be nested with the bottom end of the what two springs arm,And it is arciform to stablize this bar in one by bending,And the what ground that can stand,The present invention is passed through to mouse,And the locking bar is touched,The locking bar and this bar is set to unbutton Hou,By the torque spring portion initial elasticity involution of this bar,The clamping bar is interlocked to approach towards the torque spring portion,And the mouse that will be swarmed into is gripped between the what torque spring portion and the clamping bar,To reach mousing purpose person.一種簧線式捕鼠裝置，係包括：一本桿、夾桿及鎖桿，分別由金屬線材彎折成型，其中該本桿係含有一扭力彈簧部，於其兩側係分別縱長地突伸有一簧臂，於平時該本桿係呈一直線狀，應用時，可相對壓移該兩簧臂，使該本桿呈一弓狀，且以樞接於該夾桿上之鎖桿，勾扣於其中一簧臂之底端上，使該夾桿可以套置於該兩簧臂之底端，而使該本桿被彎曲呈一穩定之弓狀，且可站立於地面，待老鼠穿過本發明，而觸碰該鎖桿，使該鎖桿與該本桿解扣後，藉該本桿之扭力彈簧部瞬間彈性復歸，連動該夾桿朝該扭力彈簧部趨近，而將闖入之老鼠緊夾於該扭力彈簧部及該夾桿間，以達捕鼠目的者。
