Automated fiber placement(AFP), as the production molding process for large-scale aerospace structures, is the future direction. Intermediate modulus carbon fiber prepreg is suitable for the production of aerospace structures to meet the demand of weight reduction, so it is significant to study intermediate modulus carbon fiber prepreg for AFP. This paper uses HF40A, an intermediate modulus carbon fiber and EH918 resin system, to produce prepreg, and the applicability of its AFP process was studied. The EH918/HF40A meeting the requirements of the AFP process was determined by comparison with a prepreg that satisfies the process. After comparing AFP with the mechanical properties of laminates using the hand lay-up process, it can be found that their mechanical properties are equivalent. Additionally, Typical parts were prepared with the material through AFP process, and non-destructive testing was performed which proved that the quality met the requirements of the index.