Abstract: The transition from natural time to social time signals the change of the vision of research on Marxist Concept of Time,and facilitates the research on social time from the perspective of historical materialism as well.From the perceptual to the rational,it expresses the process of recognizing the social time by Marx;from labor to leisure,it reveals the thread and thought of studying the structure of Social Time;and from the inevitable to the free,it reveals the value orientation of Marxist Concept of Social Time.From the practice perspective and based on texts,this paper tries to elaborate on the well-knit structure,recognition and Value Orientation of Marxist concept of social time.

Key words: font-family: 宋体, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">historical materialism, Social Time, labor-font-family: 宋体, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">time, free-time