The grassroots is the nerve endings for national powere to extend，the grassroots social governance stays at basic level in the process of social governance.At the new era，with the changing of social main contradictions，basic social governance modernization has new connotation and significance and faces many problems such as frequently encountered social contradictions，no new structure of grassroots social governance,and incomplete system and mechanism and so on，which result from the change of social transition stage，the blind action of grassroots governments and marginalization of social organizations.Thus，the discussions on the policies and direction for realizing grassroots social governance modernization from the perspective of direction，refinement，coordination，scientificity and informationization based on the existed problems are of deep significance to construct all-round well-off society.