The invention discloses an automatic limiting and short-circuit-proof liquid supplementing and feeding system for a storage battery pack. The automatic limiting and short-circuit-proof liquid supplementing and feeding system comprises the storage battery pack composed of a plurality of single storage batteries; a liquid supplementing and exhausting combined cover of each single storage battery is provided with an automatic limiting and short-circuit-proof liquid supplementing and feeding device; a liquid supplementing and feeding hole of the automatic limiting and short-circuit-proof liquid supplementing and feeding device is connected with a liquid supplementing and feeding pipe; one end of the liquid supplementing and feeding pipe is connected with a concentrated liquid storage tank and the other end of the liquid supplementing and feeding pipe is sealed; an exhausting hole of each automatic limiting and short-circuit-proof liquid supplementing and feeding device is connected with an exhausting pipe; one end of the exhausting pipe is sealed and the other end of the exhausting pipe is communicated with the external atmosphere through an exhausting check valve. The automatic limiting and short-circuit-proof liquid supplementing and feeding system is convenient and rapid to operate, low in cost, less in maintenance and safe and reliable to use.