CAE is a kind of numerical calculation based on two-dimensional or three-dimensional geometric CAD, using finite element (FE)\\boundary element (BE), mixed element (ME), rigid element (RE), priority difference and optimization. The method combines computer graphics technology, modeling technology, data management and processing technology based on object-based design and analysis of integrated technology and process. Its core technology is finite element and optimization technology. It can cover all aspects of engineering and manufacturing informatization, but traditional CAE mainly refers to the performance and safety reliability analysis of engineering and products by computer, simulation of its future working state and operating behavior, early detection of design defects, And confirm the availability and reliability Plastic mould factory of future engineering, product features and performance. Next, let's introduce the problems faced by CAE technology. CAE software is not easy to operate: The most immediate challenge of CAE technology is the inoperability of software. This is related to the key factors that CAE software can be popularized in various enterprises. CAE technology is divided into software operation and theoretical knowledge. Traditional CAE software is more complicated in operation and requires more experience. At the same time, CAE technology involves a large number of numerical calculations and mechanics problems, which leads to the long-term use of CAE software. High-performance computing: The rapid development of computer technology has driven the development of CAE technology, and how simulation technology keeps up with computers to see the development of technology. The development of hardware technologies such as CPU, GPU, and workstations quickly provides a very solid backing for CAE technology. Making full use of emerging technologies such as multi-core CPU, HPC, and parallel computing to provide virtual simulation analysis efficiency and reduce computation time will be a very important development direction of CAE technology. In order to keep up with the development of computer hardware, new high-precision and high-efficiency parallel algorithms are being researched, and some practical new algorithms will continue to be available. The new algorithm can fully utilize the software and hardware resources, high efficiency and high precision of the super parallel computing system to obtain the calculation results when simulating complex engineering or products. However, the contradiction between calculation speed and calculation accuracy is difficult to integrate. To increase the calculation speed, it is necessary to sacrifice the accuracy. This is not only a problem that software and hardware can solve. It is still necessary to CAE engineers. It has enough analytical experience and judgment ability in the simulation process to adjust a solution that is most suitable for enterprise applications between calculation speed and calculation accuracy.