The control method applied to a liquid infusion system includes: receiving a command delivered by the input device and obtaining an infusion attribute information from the input device depending on the command; the infusion attribute information includes parameter information, and the parameter information comprises a total intake for a predetermined time period and at least one first intake corresponding to the at least one first liquid; obtaining at least one second intake corresponding to the at least one second liquid based on the total intake and the at least one first intake; controlling at least one infusion pump with the first liquid to infuse the first liquid into the target based on the at least one first intake ; and controlling at least one infusion pump with the second liquid to infuse the second liquid to the target based on the at least one second intake.