This fine particle production method involves a dissolving step in which a stirrer having a rotating stirring blade is used to dissolve at least one type of fine particle raw material in a solvent to obtain a fine particle raw material solution, and a precipitation step in which the fine particle raw material solution and at least one type of precipitation solvent for precipitating the fine particle raw material from the fine particle raw material solution are introduced between at least two treatment surfaces which are arranged oppositely one another, can move closer to and farther apart from one another, and at least one of which can rotate relative to the other, and the fine particle raw material solution and the at least one type of precipitation solvent are mixed in a thin film fluid formed between the at least two treatment surfaces, and the fine particles are precipitated. The stirring energy is determined by the stirring time conditions of the stirrer, the circumferential velocity conditions of the stirring blade, and the temperature conditions of the fine particle raw material solution, and in the dissolving step, the stirring energy is varied by changing at least one of the aforementioned conditions, and by changing the stirring energy, the degree of crystallization and the crystal form of the fine particles obtained in the precipitation step are controlled.La présente invention concerne un procédé de production de particules fines comprenant une étape de dissolution dans laquelle un agitateur pourvu dune lame dagitation rotative est utilisé pour dissoudre au moins un type de matière première de particules fines dans un solvant, afin dobtenir une solution de matière première de particules fines, et une étape de précipitation dans laquelle la solution de matière première de particules fines et au moins un type de solvant de précipitation destiné à précipiter la matière première de particules fines à partir de la solution de matière première de particules fi
