The 5 gallon barreled water filling machine is composed of washing, filling and sealing. The bottle washing machine uses multiple washing liquid sprays and disinfectant spray to achieve the purpose of washing and disinfecting, and the disinfectant can be recycled. The sealing machine can be automatically sealed and equipped with a shower device during the delivery of the cap to ensure that the cap is sterile and clean. The filling machine can automatically wash, disinfect, fill, gland, count and output. It has the features of complete functions, novel design and high degree of automation. It is a new type of bottled water filling equipment integrating machine, electricity and gas.