The invention discloses an automatic, timed and quantitative worm-wheel oiling machine. The timed and quantitative worm-wheel oiling machine comprises a movable workbench, wherein an oil cylinder is placed inside the movable workbench and provided with a vacuum pump, an oil filling pipe is connected with the vacuum pump through a vacuum pump connector, and the other end of the oil filling pipe is connected with a plurality of injectors. The timed and quantitative worm-wheel oiling machine is simple in structure, convenient to operate, and capable of achieving automatic, timed and quantitative lubricating-oil coating of a worm wheel, and improves working efficiency greatly.