China's traditional legal theory generally agreed that there is a clear boundary between rights.As long as one can properly and reasonably exercise their rights,generally speaking,they can't infringe the rights of others.But rights are mutual from the analysis of law and economics,therefore,there are conflicts between rights,Portrait right and portrait are no exception,In order to solve the conflicts,we have to put reasonable restrictions on portrait right.Based on the following five aspects,others' portrait can be used without the permission of obligee.