A storage bag comprises a first bag body and a second bag body. The first bag body comprises two first spacers. The two first spacers are connected to each other to form a first storage space and a first opening. The second bag body comprises two second spacer sheets. The two second spacers are connected to form a second storage space and a second opening. The second bag body is connected to one side of the first bag body, so that one of the first spacers and one of the second spacers together form a third storage space and a third opening.一種收納袋包含一第一袋體及一第二袋體。第一袋體包含二第一隔離片。該二第一隔離片之部分相連而共同形成一第一收納空間及一第一開口。第二袋體包含二第二隔離片。該二第二隔離片之部分相連而共同形成一第二收納空間及一第二開口。其中,該第二袋體連接於該第一袋體之其中一側,以令其中一該第一隔離片與其中一該第二隔離片共同形成一第三收納空間及一第三開口。