Proceeding from the fact that China i s at a primary stage of socialism and t he living standard of people has undergone two historical leaps,from poverty to having adequate food and clothing,then to leading a com-fortable life,the author raises the question on the division of phases an d the fundamental objectives in the t hird strategic plan during the first 50years of the 21st century.The author also advances relative measures as to t ake best advantage of the favorable condition,dissolve unfavorable factors to expand development space and pre vent occurrence of risks.