【正文】 on take more share. Main contents Innovative design techniquesType carried out on the crane drive innovation, structures and functions of innovation theory and technology innovation base in theoretical research, we analyze the new material, new techniques, new gear, and thus through the optimization of different design, deposition and bination to produce a new design, has introduced a new innovative design results transmission. Cost designIn the product design process costoriented design techniques and technologies in parallel cost estimate is critical to product cost reduction, The focus is to study the cost structure analysis and value engineering analysis techniques, and the need to construct a variety of specific design knowledge base and cost data to accurately estimate the cost of parallel. Immediate response to achieve product cost through design adjustments to control the product design stage to achieve the true cost of implementation. Innovation does not always equal to the higher costs to the invention with new ponents, use standard ponents, and even standard parts and purchased parts also can be bined into a new product, which is an innovation. Rapid Design TechnologyMarket demand for very short delivery time requirement to carry out webbased collaboration (offsite) design, concurrent engineering technology, this can shorten the product development cycle. Among them, the series modular design, artificial intelligence, product design expert system technology and virtual manufacturing technology is designed to be fast an important part of the study. Simulation and Virtual DesignModeling and simulation software is the puter simulation technology to the important research topics on the innovative design of considerable research, and fuzzy expert system and artificial neural network technology into the simulation system will contribute to the formation of an efficient, intelligent crane simulation system. The Virtual Reality (VR) techniques, but will make a crane with a more realistic simulation technology to facilitate input and output system that can quickly make a variety of program evaluation and decisionmaking. Intelligent Design TechnologyCrane Intelligent CAD (ICAD) system technology and machine technology of intelligent design, intelligent design makes for CIMS to the advanced stage of intelligent design. Intelligent design principle scheme。 American scholar (the quotation of prices in the face) on the existing or produced products for return of the survey results, the establishment of a cost model。 The United States set up the Planning Board Japan also attaches great importance to the development of design technology will be designed as a technical, economic, aesthetic, and the overall integration of ergonomics, and strongly promote and adopt new technologies. In short, the economic and technical design of the developed countries and a lot more attention to innovative design, making the mechanical and electrical products, including lifting the product design, safety and reliability, technical and economic aspects of such rapid changes occur more and more design increasing levels. The development of China’s crane design has gone through a tortuous process. More than before the design is based on imitation of the Soviet Union mainly, with the designer’s experience, a great product design limitations. From the 60’s, started a new product development and design of new ponents and experimental research, to make the design experience from design imitation and gradually to experimental research and analysis phase. To 80 years, BaoGang and some very large panies with foreign crane and with the introduction of foreign joint design, manufacturing, and other forms of domestic adoption, begin in the country to introduce a number of international advanced technology and design. The same time, puter application technology into design, design work on the crane played an important role in promoting development. However, our crane design are still many problems, primarily the design of most small and medium analysis is not enough, low capital investment, personnel training, keep up with development needs, has not formed to develop new products or old products, design and ability to cope with the introduction of advanced technologies and products, not from a design perspective digestion, and no ability to reinnovation. Designers do not form a reasonable ech