Provided is a magnetic device using permanent magnets according to an exemplary embodiment of the present invention. In more detail, the present invention relates to a magnetic device using permanent magnets that can form a high magnetic field using a first permanent magnet and a second permanent magnet to perform various kinds of magnetic field application experiments, in particular, can be used for a single crystal growth, generation of polarized neutrons, and the like, and easily manufactured with a simple configuration and secure sufficient durability.