Nowadays, more and more attention has been paid to the restoration and conservation of the original mounting of calligraphy and paintings. Grass with Insects and Butterflies Handscroll by Female Painter Yanyan of the Song Dynasty is an important cultural relic collected in Shanghai Museum. Although the mounting is not the original one from the Song Dynasty, it still boasts a history of more than 100 years. Before restoration, the wrapping silk was worn and incomplete, the upper mount incomplete, the joint of the top stave cracked and the backing paper heavily arched. The restoration adopted the scheme of preserving the original appearance of the mounting and improving its defective parts. The wrapping silk and the upper mount were separated and then repaired and restored. The “approach bridge” paper was removed to improve the current situation of arching. In order to improve the strength of the old material, the edge of the original wrapping silk was covered with bark paper. After the repair, the wrapping silk and the upper mount were restored to be complete. As a result, the parts with serious arching became smooth and soft, which is more conducive to display and the collection in the future.