The purpose of the present invention is to provide a method for producing granules of having a uniform size. To this end, the present invention provides a method for producing granules, the method characterized by including preparing an organic member solution, uniformly dispersing an inorganic member in the organic member solution at a weight ratio of 1 to 10 based on an organic member to form an organic-inorganic composite solution, spraying the organic-inorganic composite solution in an electrostatic charge manner, and polymerizing the sprayed organic-inorganic composite solution to form a hydrogel phase. The production method of the present invention has advantages in that granules having a uniform size may be mass-produced in a short time and the granules may be produced at a high yield. Accordingly, the production method of the present invention has advantages in that the method may be applied to a variety of fields, such as a pharmaceutical field, a medical field, a cosmetics field, and a food field and that the method may replace a conventional spray drying method.
