The invention provides a multi-stop fast-switching continuous filling device and a use method thereof, which belong to the technical field of mine filling. The device includes a four-way pipe, a filling incoming pipe, a sedimentation tank module, a filling module, a stope connection module, a sedimentation tank connecting pipe, a valve and a flange. The entrance of the four-way pipe is connected to the filling incoming pipe through a flange. The three outlets of the pipe are respectively connected to the sedimentation tank module, filling module A, and filling module B through flanges, and valve switches are used to control the flow direction. The sedimentation tank module is connected to the sedimentation tank connecting pipe through flanges, and the filling module is connected to the stope connection module Through flange connection, the stope connection module is connected with the filling stope. The device has simple processing, low manufacturing cost, simple operation, and high practicability. It not only improves the single filling efficiency, but also eliminates the pipe moistening and washing processes when switching filling in multiple stopes, and has high practical value.