The oil slurry filtration device is a key equipment used in processes such as catalytic cracking to efficiently remove solid powder of catalysts from oil slurry. It adopts special sintered metal filter elements and other precision filtration components to achieve solid-liquid separation under high temperature and high pressure, effectively recovering clean oil slurry and significantly reducing the risk of wear and coking of downstream equipment. This device features high filtration accuracy, strong anti-clogging ability, automatic backwashing, and long-term operation, significantly enhancing the quality of oil products and the economic benefits of the device.