The invention provides a novel (meth) acrylic polysiloxane graft copolymer suitable for cosmetics and the like. The (meth) acrylic polysiloxane graft copolymer of the invention is a copolymer obtained by reacting the following free radical polymerizing monomers and dissolving more than 50% by mass in 99.5% ethanol at 25 u2103, (a) the compound shown in the following general formula (I), (b) at least one compound selected from the compound shown in the following general formula (II), and the compound shown in the formula (III), (c) the compound shown in the following general formula (IV) , and (d) the compounds shown in the general formula (V) below.本發明提供一種適於化妝品等之新穎之(甲基)丙烯酸聚矽氧系接枝共聚物。本發明之(甲基)丙烯酸聚矽氧系接枝共聚物係使以下自由基聚合性單體反應而獲得之共聚物，並且25℃下於99.5%乙醇中溶解50質量%以上，(a)下述通式(I)所示之化合物、(b)選自下述通式(II)所示之化合物、及式(III)所示之化合物中的至少1種、(c)下述通式(IV)所示之化合物、及(d)下述通式(V)所示之化合物。
