[Objective] The effects of solonchak-improved fertilizer on meadow solonchak and economic benefit of sugar beet was researched by applying it in Hexi corridor of Gansu Province, in order to provide technical support for the sustainable development of beet industry in this area.[Methods] The study was conducted on the meadow solonchak in Huajian Town, Suzhou District, Jiuquan City, Gansu Province through field experiment.[Results] The order of raw materials impacting sugar beet yield were solonchak agent, special fertilizer of sugar beet, organic carbon fertilizer. The formula components of solonchak amendment fertilizer were as following, the special fertilizer of sugar beet was 0.0586, solonchak agent was 0.0623, organic carbon fertilizer was 0.8791. The amount of solonchak-improved fertilizer was positively correlated with indices of porosity, aggregate, water holding, organic matter, available nitrogen, phosphorus and potassium, sugar beet agronomic trait, economic trait and yield; and was negatively related with soil bulk density, pH value and total salt content. Statistical regression showed that the optimum application amount for economic benefit was 39.64 t/hm², at that application level, yield of sugar beet roots would be 96.68 t/hm². The benefits from solonchak-improved fertilizer got 414.48, 946.10 yuan/hm² increases as compared with the benefits from two traditional ameliorants named Kangyanfeng and Wofenglong.[Conclusion] The application of solonchak-improved fertilizer can improve the physical and chemical properties of the meadow solonchaks and increase the soil enzyme activity and the yield of beet.