The characteristics of test data in construction machinery industry are many formats, large data volume, and high business complexity. Traditional website construction has many defects in terms of website friendliness and aesthetics. In addition, slow loading and unstable running of web pages are easy to occur when processing large amounts of data concurrently. The operating efficiency of enterprise test business is seriously affected, resulting in the increase of enterprise cost. Single-page application technology (referred to as SPA) is a brand new website construction mode, which is the mainstream of current web development technology. It applies modular programming method to provide users with better website experience. Its construction mechanism solves the problems largely brought by traditional website construction methods. This paper mainly discusses the use of SPA website architecture to build a test business management system applicable to large enterprises, to solve the problems faced by enterprise test data management, to improve the digitalization ability of test business, and to improve the efficiency of enterprise test operation finally.