Milk filling device without secondary filling

The utility model discloses a milk filling device without secondary filling. The milk filling device comprises a control unit and a filtering unit, a flow valve for calculating the milk conveying amount is mounted at the front end of the milk filling pipe; the output end of a nitrogen filter of the filter unit is communicated with a milk filling pipe, and a nitrogen pressure regulating valve is mounted in the output end of the nitrogen filter, so that milk and nitrogen with specified pressure are infused into a packaging body together, the problem that milk generates gas in the milk filling pipe is solved, the milk filling pipe does not generate large fluctuation in operation, and the milk filling efficiency is improved. The shape of a packaging body is not affected, and it is guaranteed that the pressure difference in the milk filling pipe is not lost, so that secondary filling is omitted, the problems that at least 10 times of secondary filling are needed every day, 150 strips and more than 30 kg of milk ca