| Development is a complicated synthesis and each social history period has its own way of pursuing development. Since the entrance of 21st century, China takes the scientific development as the starting point, the social harmony as the goal due to the technology information revolution and the global issues. China also has further elaboration on the way to all—round development of a well—off society.In the academic research field, the study on the harmonious development of our country should be from various points of view. From the macro-angle, this article takes the history and current situation of our country's social development as the standpoint, the basic theory of cost as the bridge. It also holds the view that the development of our country is also facing with different development cost. In order to pursue the ideal situation of our nation's harmonious development, we will inevitably make the choices of the rational cost. The end of this paper initially probes into the rational cost pattern of social development, expecting to have a new picture of social harmonious.This paper consists of four parts. The foreword introduces the reasons of choosing this topic, the related bibliography, the theory of the topic and its practical significance. The first part analyses the scientific significance, the basic types and criterion from the point of Marxism and Angle's cost. Explains the relation between social development and cost. The second part makes a thorough and comprehensive analysis on the cost of our nation's social development in terms of the scientific significance, basic characteristics , cost—paying features and specific way of our nation's social development. The third one is about methodology. Aiming at the price choice faced with us in development, it elaborates on the price paying and price choose, target value with truth, kindness, and beauty, it takes price pondering deeply to price and social development, we taking the value choosing of low price paying to harmonious development road, through the rational choice to build up a harmonious society. |