A monopole magnet is similar to a Magnetic monopole. Magnetic monopole is a hypothetical magnetic particle with only a single magnetic pole in the north or south pole, which is proposed by scientists in the String theory of Theoretical physics. In the material world, this is quite special because magnetic particles usually appear in pairs in the form of dipoles (north and south poles). The existence of Magnetic monopole, which has never been discovered by scientists so far, is controversial in the scientific community. Therefore, Magnetic monopole can be said to be one of the important research topics in the 21st century physics.

As early as 1931, British physicist Paul Dirac used Formula to predict that the Magnetic monopole exists at the end of the tube carrying the magnetic field (the so-called Dirac string). At that time, he thought that since electrons with Elementary charge exist in the universe, particles with basic "magnetic charge" should exist, which inspired many physicists to start their work to find