Rayon fabrics were treated with some commercial non-formaldehyde and low-formaldehyde resins, and then their effect on the physicochemical properties of fabrics, including formaldehyde release, tear strength, shrinkage, and wrinkle recovery, were investigated respectively. Rayons treated with non-formaldehyde resin, little formaldehyde release was observed. Considering other factors, the optimal concentration of non-formaldehyde resin was shown to be 11-13%, and curing temperature was $170{sim}175^{circ}C$. In case of low-formaldehyde type, 9-11% resin concentration and curing temperature of $170{sim}180^{circ}C$ were recommended for optimal finishing condition. The choice and combination of resins and catalysts were also important factors, and preliminary considerations before resin-finishing of rayon are also important to get much better results.