The utility model discloses a self-service oil feeder. The self-service oil feeder comprises a heavy cap and an oil reservoir, wherein the oil reservoir comprises a cylindrical oil storage pipe and a funnel-shaped oil discharging nozzle, the heavy cap is in thread connection with the inner wall of the oil storage pipe, and a thread arranged on the outer wall of the oil discharging nozzle is matched with a thread of an oil filling port. When a maintainer carries out lubricating work, the funnel-shaped oil reservoir is filled with lubricating oil, equipment is started, and equipment moving portions needing to be lubricated can be evenly lubricated by the oil in the oil reservoir. The self-service oil feeder is simple in structure; when oil feeding is conducted, only the funnel-shaped oil reservoir is filled with the oil, the heavy cap is screwed tightly, a stacking machine is started on line, and the self-service oil feeder conducts automatic lubrication. The self-service oil feeder guarantees that the maintainer can carry out operation during lubricating work in a multi-aspect mode, safe operation hidden danger is eliminated effectively, working efficiency is improved, and spare-part consumption is reduced.