Abstract: The space radiation effect analysis technology in the spacecraft design is reviewed and the main elements of the space radiation effect analysis technology are shown to include the methods and the software tools, the total ionizing dose effect, the displacement damage effect, and the single event effect. According to the latest progress in the space radiation environmental model, further development directions of space environment effect analysis technology are proposed such as the recognition of dynamic variations of radiation environment, the on-orbit radiation risk characterization, and the analysis of the radiation impact in unfamiliar orbits.