A large current inductance is disclosed. The high current inductor comprises a magnetic ring group, an inductance coil and a fixed base support; The induct coil is formed by winding the enameled flatcopper wire by a winding machine, the inductance coil is sleeved on the magnetic ring group, and the two ends of the inductance coil are inserted into the fixed bottom support; A magnetic group is formed by sequentially arranging at least one magnetic ring along an axial direction; Each magnetic ring comprises two semicircular magnetic rings, one semicircular magnetic ring having grooves at both ends and the other semicircular magnetic ring having projections at both ends; The protrusion matches the groove for butting the two semicircular magnetic rings into a magnetic ring. The large currentinductor of the invention is convenient for processing and batch production, and can improve the processing speed.