1. Definition: Educational informatization refers to the application of computer multimedia and network information technology in the field of education to promote the comprehensive reform of education and make it adapt to the new requirements of the information society for educational development. Background: In recent years, the continuous investment and construction of the basic environment of educational informatization has laid a solid foundation for educational informatization. The construction of terminal equipment such as server, storage, network, pc, multimedia and so on involved in educational informatization has achieved phased success, and educational application software has also been popularized and used to a certain extent. However, education informatization lacks overall planning and construction. The National Audio-visual Education Center clearly put forward the construction policy of three links and two platforms, and even put forward education in the ten-year plan for the development of educational informatization. The state requires the use of educational cloud to realize educational informatization. As the direction and trend of educational informatization development, educational cloud is unstoppable. Through the concept of "one-stop" application and "cloud", Education Cloud tries to break the boundary of education informatization, so that all schools, teachers and students can have an available and equal service platform. Cloud computing+education = education cloud. Education Cloud is a system that integrates and informatizes educational information resources and systems by using advanced cloud computing technology, deploys and implements them uniformly on the cloud platform, and provides services to teachers, students and even social personnel through the Internet. Realizing the popularization of educational cloud has given us the greatest benefit of realizing the popularization of educational resources. At present, there is a serious inequality of educational resources in the field of education in China, which has also triggered some potential contradictions. With the help of cloud computing, educational resources can be evenly distributed, and the implementation of cloud computing technology can greatly alleviate this contradiction and realize the sharing of educational resources. 2. Education informatization is a huge project, which can not be realized by purchasing hardware. Need to raise awareness and constantly improve the application level of information construction; It is necessary to strengthen the promotion of information literacy of cadres and teachers; Strengthen the construction of local high-quality resources; These final cores will fall on the overall platform and application construction of educational informatization. So as to realize the modernization of education driven by information. This is also an important strategic task for the sustained and rapid development of education. As I said before, if we want to realize the informationization of education, we must pass the education cloud. Education cloud is the best practice to realize education informatization and realize three links and two platforms. Benefits of the education cloud model: reducing costs (manpower, material resources and financial resources) and ensuring flexibility. In recent years, the demand for educational data and business applications has exploded, which puts higher demands on the processing capacity of data centers. Traditional IT service providers have to make great efforts to upgrade the existing system, and the upgrade cost is huge. The cloud computing construction mode of education cloud is adopted in our district, which not only reduces the construction cost of data center, reduces the requirements for school professionals and infrastructure, but also ensures the expansibility and flexibility of data center on the premise of ensuring the construction quality. Unified platform and resource integration take the education support platform as a unified platform, and all application software and information resources are planned, developed and built in a unified way to ensure the maximum use efficiency and economic benefits of the invested funds. By means of resource integration, the information resources of each application system will be managed in a unified way, effectively avoiding the problem of "information islands", realizing data interconnection and overall arrangement, gradually expanding the beneficiary groups of educational informatization in the whole region, and maximizing the social benefits of educational informatization. Collaborative operation and maintenance improves efficiency. Through the education cloud model, the internal software and hardware resources are effectively managed centrally, so that the application service, data center operation and maintenance and metropolitan area network construction of the information center form a standardized operation and maintenance system, which not only improves the service capacity and work efficiency of the information center, but also relieves the pressure of application construction and network maintenance of education and teaching departments and units at all levels in the school. 3. Educational informatization is neither hardware nor software. It is more of a construction mode and a systematic thing. As far as the Education Bureau itself is concerned, the construction of educational informatization needs to realize a variety of services from platform-software-service. Not just providing services. Taking the construction of Pan-East Education Cloud as an example, the construction of education cloud needs to be based on the construction idea of "taking students as the center, teachers as the development and schools as the foundation"; Through the "education cloud" model, the key projects of "three links and two platforms" of educational informatization will be realized; Create an ecological construction model of application, resources and data coordination under the overall framework and realize sustainable development. The construction of education cloud should not only integrate the original application system of education bureau, but also realize the construction of new system. The reservation of the future system should be guided by Scientific Outlook on Development and centered on the education cloud model of "cloud computing+education". Promote "broadband network connectivity" and complete data center construction and service; Promote the "quality resources class for all" and accelerate the co-construction and sharing of educational resources. Promote "everyone's online learning space" and promote the reform of teaching methods and learning methods. Building two "public service platforms" of educational resources and management will provide solid support for educational informatization.