The present invention relates to an automatic companion animal door, and enables the companion animal to operate when the companion animal approaches a certain distance by a detection sensor, the door can be opened by a motor, and the companion can operate by a remote control. The design is designed to allow companion animals to directly open and carry around, so the connection structure is poor and the problem of wind intrusion is solved. Due to the characteristics of the connection structure is poor, it is to solve the problem that the wind leaks in. In other words, the present invention is a door frame formed with a protrusion and a fitting fitting to be mounted on an existing window frame in the entrance door of a companion animal, a detection sensor configured by attaching sensors in both directions to operate when the companion animal approaches a certain distance, An entrance door formed to automatically open so that animals can pass, a motor configured to operate when a sensor is sensed so that the entrance door can be opened, a main body formed in a square shape as the center, and a wireless method formed so that companions can operate it. It was configured with a remote control. Accordingly, the present invention enables the companion animal to operate when the companion animal approaches a certain distance by the detection sensor, the door can be opened by the motor, and the companion animal can be operated by the remote control. The connection structure is poor due to the characteristics of the design that allows it to travel, and the problem of wind intrusion is solved, so that the existing companion animal must push and go directly, and the connection due to the characteristics of the design that the companion animal can directly open and carry. It has the effect of solving the problem of wind intrusion due to the poor structure.본 발명은 자동식 반려동물 출입문에 관한 것으로서 감지센서에 의하여 반려동물이 일정거리에 접근했을 때 작동할 수 있게 하고, 모터에 의하여 출입문이 열릴 수 있게 하고, 리모컨에 의하여 반려인들이 작동시킬 수 있게 함으로써
