The invention relates to a manual curtain winding device, comprising a base (1), a convex shaft (3), a chain wheel (2) driven by a chain rope (21), a positioning spring (4), a drive retainer (5) and a drive sleeve (6) which can be fixed with a curtain pipe (8) at the periphery, a convex shaft (3) is arranged in the middle part of a reentrant cavity (11) of the base (1), the chain wheel (2) is sheathed in the convex shaft (3), the positioning spring (4) is tightly sheathed on a metal material circumference of the convex shaft (3) outside the reentrant cavity (11), the drive retainer (5) can rotatably sheath the positioning spring (4) in the drive retainer (5) and one end of the drive retainer (5) is linked with the chain wheel (2) by a drive mechanism while the drive sleeve (6) is sheathed on the drive retainer (5) and is linked with the drive retainer (5). The structure of the invention has the advantages that abrasive resistance between the positioning spring and the convex shaft is increased dramatically, thus greatly lengthening the service life of the winding device; in addition, the two ends of the positioning spring can effectively prevent the abrasion between an arch convex part in the drive sleeve and the two ends of the spring and achieve the effect of heat insulation, so that the winding device can be further protected and the service life thereof can be lengthened.