Maglev trains have a working system that will later be used to move the train. Magnetic Levitation (maglev) working system uses the principle of attractive or repulsive force generated by magnets. In its development, there are several systems used on maglev trains. This article describes how to design the strength of the magnetic field in the maglev prototype. Tests using a magnet based on the distance and diameter of the magnet. The results of measuring the magnetic field on a permanent magnet by varying the space to determine the position of the largest magnetic field, where the largest magnetic field is found in 2 magnetic pieces with a diameter of 15 mm with a value of 50.7 gauss. In the coil magnet, manual calculations are carried out, to produce a magnetic field equal to 2 pieces of 15 mm diameter magnet requires a current of 10 amperes