【正文】 ustainable development Against this background， the concept of sustainable development into rapid economic development is inextricably linked to the design， based on this ongoing exploration and practice. “3r” principles intended to sort out this article on various aspects of industrial design and the guiding role， and attempts to explore the “3r” principles of industrial design at the extension.2 Cycle economic model and the principle of “3r”Economy is engaged in production， consumption and reproduction activities， which is to meet human material needs of their own material .Recycling economy is considered following the original economy， the agricultural economy， industrial economy after the time of the postindustrial economy， with the industrial economy iss economic construction .The impact of “3r” principles to industrial designAbstractWhile industrial design creates modem life and living surroundings for people，it also accelerates the exhaustion of the natural resources and the energy resources．Besides，it has done harm to the ecological balance，and threatened the existence and the sustainable development of human beings．Confront with this situation，the strategy of sustainable development，proposed in 1990s，is accepted by many people．Recycling economy and its key point，“3r” principle，were born for this situation and bee important principle in all kinds of economic activities and in the area of design and manufacture．By decoding the connotation of “3r” principle，the article analyzes the influence and the guidance over industrial design of “3r” principle．Furthermore，the article tries to discuss the conception of redesign，which is the extension of the “3r” principle in the area of industrial design，and explicates 4R principle of industrial design for recycling economy at last．Key words3 R principle；industrial design；recycling economy；Redesign1 IntroductionIndustrial design as a crosscutting technology and the arts disciplines， it is closely related to the economy and to maintain its development and progress of society. It can be summarized： First， it services for industrial mass production， making industrial products enhance the value and valueadded. Second， It leads the fashion， to effectively stimulate consumption， so that consumers not only use the product at the same time， but also enjoy the new technology and material； Third， it puts technology to link up with the market， making products enhance petitiveness； Last but not the least， it can bring the innovation into the enterprise. Therefore，the economic development needs industrial design which has bee indispensable to the country39。However， along with the traditional industrial design creating highquality modern lifestyle and living environment and promoting economic development ，it also speeds up the consumption of resources and energy. What is more ，it dose harm to the ecological balance of the Earth and brings about a serious of great damage to human survival and sustainable development. Especially the excessive mercialization of industrial design， utilitarian and excessive pursuit of profit， the implementation of merchandise has plans to abolish the system without taking into account production， use， process waste， such as the environment， the impact of resources. It can be said that people are in inappropriate and excessive consumption patterns of life， the industrial design objectively bees essential medium to encourage people to uncontrolled consume， which is countered to the essence of industrial design—creating a science and healthy way of life. different between the resources and environment relationship. Following the economic cycle refers to the natural ecosystem of the material circulation and energy flow reconstruction of the economic system so that it harmoniously into the natural ecosystems of the material energy recycling process to product clean production， resource recycling and efficient recycling characterized ecoeconomic development patterns， also known as ecoeconomy， green economy. The relationship between economic model， environment and the resourcesIndustrial economic development patterns are from One Product One resource pollution posed by oneway flow of material and an open economy， this openness has led to a global depletion of resources and waste， as well as the serious deterioration of the ecological environment. “3r” principle is the basic manifestation of the economic cycle， and its specific contents are as follows：Recycling principle is the third principle of circular economy， that is， terminal control method of production and consumption in the process of waste generated， through th