The present invention provides a method for detection skin condition, which includes the steps of: obtaining a skin image from a suspected individual; converting the skin image to an RBX image through RBX separation; and determining the skin condition of the suspected individual according to the color parameter of the RBX image.本發明提出一種檢測皮膚狀態的方法,其包含以下步驟:擷取一待測個體的皮膚影像;將待測個體的皮膚影像經RBX影像分色轉換取得一RBX影像;以及依據RBX影像中分析取得之顏色參數判斷待測個體的皮膚狀態。