Since the 21st century, with the continuous development of science and technology, smart household appliances have gradually entered people's vision and are being sought after globally. Smart curtains are also one of them. However, the price of smart curtains is not very high compared to the functions they can achieve. The main problems with smart curtains are high energy consumption and poor comfort. Starting from practical issues, this article mainly studies the use of light control and manual infrared remote control to control the opening and closing of curtains, in order to improve their use economy. According to the design requirements, this study used a light sensing module, a time module, and a low-cost 89S52 to construct a small control system. The hardware and software designs were completed, and the design results were simulated using PROTUES. Based on this, PCB design, software debugging, and hardware circuit debugging were carried out to simulate the operation of curtains, verifying the rationality of the system design scheme and the completeness of system functions.