The invention discloses a postpartum recovery garment which comprises a garment body and a belt. A row of buttons is arranged on the outer side of one front fly of the garment body, and a plurality of rows of buttonholes are arranged on the inner side of the other front fly of the garment body. The buttonholes match with the buttons in size. A plurality of belt holes are arranged on a waist line of the garment body and match with the belt. The belt is connected with the garment body through the belt holes. The longitudinal size of the garment body can be adjusted by adjusting the way of connection between the buttons and the buttonholes. A fixing belt and fixing holes are arranged on the garment body. A row of fixing buttons is arranged on the fixing belt. The fixing buttons match with the fixing holes. One end of the fixing belt is fixedly connected with the upper end of the front fly with the buttonholes. The other end of the fixing belt is connected with the garment body through the fixing buttons and the fixing holes. Therefore, the postpartum recovery garment is size-variable, attractive, economical and practical.