Abstract: As China launches more space missions with a higher frequency,the efficiency of its TT&C software in space mission preparation is being put to test．How to shorten the preparation cycle while ensuring high-quality output is an issue that urgently needs to be tackled．Based on the framework of “software reuse technology” which currently is a hot research topic,this paper takes into consideration the demand features of TT&C tasks and proposes to ensure spacecraft flight control by retrieving reusable components from TT&C application software system and putting them into reuse in order to relieve software burden and improve quality．

Key words: TT&C application software system,Demand features,Framework,Software reuse,Component