The invention provides an automatic oil conveying device of oil injectors of a compressor. The automatic oil conveying device is provided with a manual pressure relief hole, an inert gas inlet, an oil storage tank inlet, an oil adding hole, an oil storage tank, a liquid level meter, a pressure meter, a safety valve, and the oil injectors of the compressor, wherein the manual pressure relief hole is connected with the inert gas inlet in parallel, and is connected with the oil storage tank through the oil storage tank inlet; the oil adding hole is positioned in the upper part at one side of the oil storage tank; the liquid level meter is arranged in the middle of the oil storage tank; the liquid level meter and the safety valve are arranged on the top of the oil storage tank; and the bottom of the oil storage tank is provided with an opening, and is connected with the oil injectors of the compressor. Inert gas enters from the inert gas inlet and pressurizes the oil storage tank to certain pressure; after the oil storage tank obtains pressure, lubricating oil in the oil storage tank can enter the oil injectors of the compressor from a bottom pipeline of the oil storage tank for being injected to the compressor, so that labor intensity of a production worker is greatly reduced, and operations are simple and convenient.