The utility model discloses a vacuum continuous crystalized furnace, which is used for quick quenched neodymium-iron-boron magnetic powder at the crystalized process, comprising a furnace body, a vacuum machine group connected with the furnace body and a water cooler connected with the vacuum machine group. An upper and a lower sides at both ends of the furnace body are respectively provided with a feeding hopper and a storage barrel and the furnace body is provided with a shielded inner heating furnace and an output device with an endless conveying belt. The magnetic powder is conveyed into the heating furnace for crystallization by the conveying belt and is quickly cooled to room temperature to output after pre-cooling two times and a microcomputer controls the furnace temperature, the vacuum degree and the speed of the conveying belt. The utility model has the advantages of continuous production, low energy consumption, simple and compact structure, and convenient operation and maintenance.