To provide a process for producing an oxide magnetic body in which remanent magnetic flux density can be enhanced, although it has been difficult hitherto, by improving the defect of dry molding, i.e. so-called "the ratio of remanent magnetization/saturation magnetization" in dry molding having high molding speed as compared with wet molding.

In the process for producing an oxide magnetic body having a step for obtaining a molding by dry molding a material mixture containing oxide magnetic particles and a lubricant in magnetic field, an aldehyde based lubricant having an aldehyde structure as a functional group is added.