Method for manufacturing spherical particle material

A production method for a spherical particle material, comprising:

• a raw particle material preparation step of preparing a raw particle material composed of an inorganic material containing 50 mass % or more of alumina;
• and
• a spheroidization step of feeding the raw particle material into a high-temperature atmosphere to melt the raw particle material and then cooling the raw particle material to prepare a spherical particle material having a volume average particle diameter of 1 μm or more and less than 10 μm, wherein
• the raw particle material preparation step includes a pulverization step of pulverizing a spherical coarse raw particle material composed of the inorganic material and having a larger volume average particle diameter than the raw particle material such that particles having a particle diameter of less than 1 μm have a content of 2% or more based on a mass of the raw particle material and have a sphericity of 0.9 or less, to obtain a powder compressibility evaluation FF value, by a powder rheometer, of 2.0 or more.