The invention discloses a bearing type liquid delivering device capable of increasing the liquid drainage precision. The bearing type liquid delivering device comprises a bearing frame, the bearing frame is provided with an infusion pipe, a storage battery, a water pump and a liquid storage tank, the storage battery supplies power to the water pump, one end of the infusion pipe is connected with the liquid storage tank, the liquid storage tank is connected with a water inlet of the water pump, a hose is connected to a water outlet of the water pump, and the other end of the hose is connected with a fertilizing gun. A power device and a water delivering pipe are arranged on the bearing frame, so that the overall bearing weight does not exceed 10 kg, in the using process, a water storage container is placed in a field, the water delivering pipe is connected into the container so that work like watering, fertilizing and drug application can be conducted, the bearing weight can be loweredby a large margin, and the labor intensity is lowered. Besides, the liquid storage tank is added in an inlet of the pump, the liquid storage tank achieves a temporary water storing effect, it can be guaranteed that the water output amounts in all times are the same, and the problem that the precision is influenced when too much air exists since the pipe is too long is solved.