Abstract
Due to the short history of researches for wireless sensor network which has been emerging prominently since the early 1990s, the systemic assessment indicators and efficient evaluating methods of wireless sensor networks is still under exploring. Hereupon, the designing of systemic indicators and assessment methods inspired by the rough set theory are described in this paper to enrich the methodologies of evaluating a network. Origin from the designing evaluating indictors in various aspects of wireless sensor networks characteristically and explicitly, the empirical assessment examples are taken out to prove that the methodology and the index are practical significance and perform efficiently.