In order to provide an intelligent living environment for pet cats, so that owners can understand and control the daily life of pet cats, and communicate and interact with them through voice, a remote pet cat care system was designed. The system uses a remote monitoring function that combines a cloud platform and a camera, allowing owners to keep an eye on their pet cats' movements even when they are away from home. This system uses PLC as the main control unit and STM32 single chip microcomputer as the slave, which can not only collect temperature, humidity, light intensity, pressure and other signals, but also carry out real-time control of the controllable hardware in the system, and transmit the collected data to the cloud platform. 4G communication technology is adopted, and users can remotely complete the intelligent control of all equipment in the system through the cloud platform. To realize real-time monitoring and interaction of pet cats in all aspects; According to the pet cat daily diet, drinking water, exercise and other important data to determine whether the physical health. This can improve the service level of the pet cage industry and inject technological power to make pet cages more intelligent.