Zebra curtain

A zebra curtain comprises a curtain rolling device, an upper rail, two fixing brackets, a lower rail and a curtain sheet. Two ends of the curtain sheet are respectively fixed on the upper rail and the curtain rolling device. The upper rail comprises a first shaft sleeve and a second shaft sleeve. The first shaft sleeve comprises a first protruding shaft, and the second shaft sleeve comprises a bearing, a second protruding shaft, a spring and a positioning piece. The curtain sheet comprises light-transmitting parts and light-impermeable portions arranged at intervals. The second protruding shaft moves inside the bearing by the spring pressing to be separated from the fixing bracket and to take off the zebra curtain, then adjusting the light-transmitting parts and the light-impermeable parts, and releasing the second protruding shaft to be axially connected with the fixing bracket, thereby completing the assembly of the zebra curtain.