This creation is a kind of self-locking pet door of induction type, wherein door body has opening, and in the opening of door-plate pivot joint what door body, control unit is set in what door body. First lock member sets the side of what door body and is electrically connected control unit, second lock member sets the other side of what door body and is electrically connected control unit, interrupter-type arrangement for detecting sets the other side of what door body, and it is electrically connected control unit, when interrupter-type arrangement for detecting judges that door-plate is turned on Hou, then the first lock member and the second lock member is enabled to change into locked state by unlocked state by one section of preset time control unit, door-plate is locked in what door body, reception device sets the other side of what door body. It makes feeding main without noticing whether pet returns within doors at any time by above-mentioned mode, can also feel at ease to go out or go to bed, facilitate really.本創作係一種感應式自鎖寵物門，其中，門本體具有開口，而門板樞接於門本體之開口上，控制單元設於門本體上。第一鎖固元件設於門本體之一側並電性連接控制單元，第二鎖固元件設於門本體之另一側並電性連接控制單元，遮斷式偵測裝置設於門本體之另一側，且電性連接控制單元，當遮斷式偵測裝置判斷門板被開啟後，則經過一段預設時間控制單元令第一鎖固元件及第二鎖固元件由解鎖狀態改變為上鎖狀態，將門板鎖固於門本體上，接收裝置設於門本體之另一側。藉由上述之方式讓飼主無需隨時注意寵物是否回到屋內，亦可安心出門或就寢，著實便利。
