Battery solution leakage discrimination system and method

The invention relates to a method for discriminating the leakage of battery solution. The method comprises the following steps: after a battery product to be detected is put in a closed system, a vacuum system is opened, a vacuum pump and a vacuum air storage tank in the vacuum system are started, and the vacuum pump carries out vacuum operation on the vacuum air storage tank; when the vacuum air storage tank is at vacuum state, the vacuum pump is closed; a valve between the vacuum air storage tank and the closed system is started, and the vacuum air storage tank carries out the vacuum operation on the closed system; when the atmospheric pressure in the vacuum air storage tank and the atmospheric pressure in the closed system reach atmospheric pressure values required by users, the valve is closed; inner and outer pressure balance systems are started, then the closed system is opened; and a chemical indicator system is started, a chemical indicator is chemically reacted with the battery in the closed system,