The rapid development of the Internet has injected new impetus into education. Network education is an important means for people to accept various educational contents. And educational technology is a necessary prerequisite to promote the development of online education. Network education provides a simple and quick platform for teachers to improve their learning level and a vast ocean for learners to browse knowledge. Both of them are inseparable from the support of educational technology. Like this old man retired at home, his spirit is still good. After teaching for 42 years, I have accumulated a little experience in education and teaching. Sharing some of his experiences through the platform of "knowing" can also solve learning problems and education problems. At the same time, I learned a lot of knowledge through this platform and enriched my knowledge reserve. None of this is possible without the support of educational technology. The improvement and development of educational technology can effectively promote the development of education. When network education was not popularized, the application of educational technology in education and teaching had great limitations, but after the popularization of network, educational technology had a stage to show its talents. It can be said that educational technology has promoted the development of online education, and online education has promoted the improvement of educational technology. The two promote and interact with each other. Now once students encounter learning problems at home, the first thing they think of is online inquiry; When parents are tutoring their children, they will also check questions online. Teachers encounter difficulties in the teaching process, through online search. There were few books in our countryside before. Students encounter difficulties in studying at home, and they can't solve them at all by asking their parents not to read books. It's even worse for us as teachers. I couldn't find anyone to consult, so I rummaged around with a dictionary and several teaching AIDS. Nowadays, children have been exposed to the Internet since they were very young. From babbling to primary school, they have gained a lot of knowledge through online education. When they enter the first grade, they can study easily. A few years ago, our primary school teachers were most worried about accepting first-grade teaching. The acceptance and knowledge of the students can hardly be said. Everything started from scratch, and they hardly learned much in the first semester. With the improvement of educational technology, teachers can exchange experiences, learn from each other and help each other through the Internet. Teachers all over the world can prepare lessons in a large network office, which greatly improves the quality and efficiency of preparing lessons, enriches the content of preparing lessons and enriches the connotation of teaching plans. In a word, the improvement of educational technology will bring unprecedented development to online education. At the same time, it has also brought rapid changes to the whole education cause. In the educational reform, the reform and improvement of educational technology is a very important catalyst.