In order to solve the problem of space single event effects (SEE), the technology of radiation hardness assurance (RHA) on SEEs of components has been studied, the requirements of RHA on SEEs of components for space application has been analyzed, the technical process of RHA on SEEs based on components has established; The evaluation requirements, data processing, risk analysis, single event mitigation methods and on orbit flight test of components have been given according to the sensitivity of different process components on SEEs. At last, the conclusion and suggestion of RHA on SEEs are given.