Promoting the construction of ecological civilization depends on both material and spiritual strength. "There is wind every year, from the beginning of the year to the end of the year." In the early stage of construction, Saihanba was characterized by bad climate, serious desertification, lack of food and housing, and remoteness and isolation. The extreme minimum temperature reaches MINUS 43.3 degrees Celsius, and the average annual snow time is as long as 7 months. Saihanba people insist on "treating slopes first, then treating nests, first producing and then living", eating black oat flour, drinking ice and snow water, living in horse racks and sleeping on the floor, overcoming all kinds of difficulties, planting seedlings of larch, Pinus sylvestris var. mongolica and spruce, and letting green take root and spread in the plateau desert. From changing the forestry development model, building ecological conservation functional areas, realizing the organic combination of afforestation protection and ecological utilization, to boldly exploring in deepening the reform of state-owned forest farms, promoting green development, enhancing carbon sink capacity, and effectively building an ecological barrier between Beijing and Tianjin, a new generation of Saihanba people will take over the baton of green development and bravely shoulder the burden of ecological civilization construction, so that the spirit of Saihanba will continue to glow with new glory of the times. In an important ecological position of the country, Saihanba people shoulder the historical mission of ecological restoration and protection, creating a green milestone in the history of ecological construction in alpine sandy land. Whether it is a forest ranger who stands silently and selflessly at Wanghailou or a forest ranger who insists on working year after year, Saihanba people plant not only a tree, but also a kind of belief and spirit, creating not only "beautiful mountains" but also "spiritual highlands" that people admire.