In order to more accurately simulate the early corrosion process of manufactured aggregate concrete in sulfate saline soils in northwest China.In this paper, the early deterioration of manufactured aggregate concrete under the action of sulfate saline soil is investigated by using nuclear magnetic resonance (NMR) technique.The effects of water-cement ratio, sulfate saline soil and salt solution on the early corrosion pattern of manufactured aggregate concrete were investigated.The results show that the main causes of early performance deterioration of manufactured aggregate concrete in sulfate saline soils are sulfate chemical corrosion and hydration product dissolution, and the early corrosion products are dominated by ettringite and gypsum. Initial total porosity of manufactured aggregate concrete decreases with decreasing water-cement ratio, fewer harmful pores are filled with corrosion products due to reduced porosity which inhibits the intrusion and transport of sulfate ions. Compared to saline soil environments,salt solution environment corrosion is more significant, the percentage of concrete porous and harmful pore pore volume increased by 2.15% and 5.18%, respectively.