Self-lubricating roller chain is a new type of precision roller chain developed on the basis of conventional roller chain, which conforms to ISO, ASME/ANSI, DIN, JIS and other standards, and has the same interchangeability size as conventional roller chain, which can be matched with standard sprockets. The sleeve of the self-lubricating roller chain is made of metal powder with specific composition and made by special process. The sleeve has a certain volume void inside, and the lubricant can be stored in the void to lubricate the friction surface between the pin and the sleeve, and between the sleeve and the roller, so as to achieve maintenance-free chain.