Abstract: The application of wireless power transfer technology to the rotating power transfer of spacecraft is an important technique to promote the further development of spacecraft. The most widely used conventional inductive power transfer (IPT) technology is challenging to apply in spacecraft on a large scale due to its high cost, high weight, eddy current loss, and other shortcomings. The capacitive power transfer (CPT) technology, with its advantages of low cost and lightweight, has received wide attention in recent years and has excellent potential in the aerospace field. This paper begins with the shortcomings of conventional IPT technology in aerospace applications and analyzes the importance of applying CPT technology to wireless power transfer scenarios in the aerospace field. Then, the development history and basic principles of CPT technology are introduced, and the current research status of CPT technology in lightweight, high power, and rotating types are reviewed to demonstrate its potential application in the aerospace field. Finally, this paper summarizes the problems in applying CPT technology in aerospace and analyzes the possible technical means to solve these problems.