The adhesive fine particles of the present invention are a copolymer comprising a (meth)acrylic ester as a main component, and can be prepared by using a (meth)acrylic ester, or a (meth)acrylic ester and a vinyl type monomer containing a functional group, according to a known method, for example, the suspension polymerization method as disclosed in U.S. Pat. No. 3,691,140.