The West Lake Temporary Imperial Palace located in the Gushan mountain of the West Lake in Hangzhou. It is the residence of the Qing emperor’s southern tour in Hangzhou. During the Qianlong period, the West Lake Temporary Imperial Palace Garden was expanded based on the original Shengyin Temple mountain garden. In the tenth year of Xianfeng, war destroyed it and failed to be rebuilt. Based on the collation of existing historical images and text data and the three-dimensional laser scanning surveying of the current situation of the palace garden site, and referring to the examples of similar buildings around the West Lake in the Qing Dynasty and the Jiangnan traditional gardens, the overall pattern of the palace garden of the West Lake during the Qianlong period and the garden buildings, water bodies, rockeries, and plant elements were restored. On the basis of restoration, the gardening characteristics of the West Lake Temporary Imperial Palace Garden are summarized.