Social construction studies are an important part of the academic legacy of renowned contemporary sociologist Lu Xueyi. An important work which Lu completed late in life，On Social Construction，is a systematic explanation and presentation of major thoughts and theories of the “social structure school” in Chinese social construction studies，representing the dedication of a generation of Chinese sociologists to public welfare and social progress. As China faces its “social legacies” amid its transformation，it is an unshirkable duty and mission for Chinese sociologists to actively build public consensus about social construction and to have the courage to serve as “the propeller of society”.