【正文】 e 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 is different between the resources and environment 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 resources Human survival and economic activities rely on the resources and the one hand ， it is the source of the human beings material system； on the other hand， it bears the economic activities of human waste generated by the various roles. The Earth can provide resources but are limited， even though it must have the ability to purify， however it is subject to human economic activity the ability of emissions is also limited. Industrial 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. Circular economy development pattern is from one of resources of renewable resources， one of green products posed by the material energy of the closedloop feedback loop process， this closed loop system， can maintain economic production of low， highquality， lowwaste， which will be economic activity of natural resources and environmental impacts to minimize damage. Interpretation of the circular economy mode “3r” principle “Reduction principle is the first principle of circular economy， that is the source of control method， which requires the source of economic activity the design stage， pay attention to the use of resourcessaving and pollution reduction requirements with fewer resources to achieve the established purpose of the production or consumption In the production areas， usually the energysaving production processes， materials and conservation of resources， the products of small size and lightweight， and easy and simple packaging requirements in order to achieve the purpose of reducing waste emissions； In the consumer area， reduction of the supremacy of the principle of a change in consumer lifestyles and advocate moderate consumption and green consumption. Reuse principle is the second principle of circular economy， that is， process control methods， with the aim to improve the products and resources use efficiency， it calls for product design to initial the form of packaging for multiple items to prevent premature bee waste. In the design， to the use of standardsized parts， repair and upgrade in order to replace， thus prolonging the service life of products； In the consumer area， to promote the purchase of durable consumer goods， to reduce the use of disposable products， such as aftersales service by strengthening the means to extend the product life as possible and not waste. 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 the resources of the means of its reprocessing of raw materials can be reus