As the most frequently used language in the world, English classroom teaching is extremely important. However, the traditional English classroom teaching method is single, which leads to the poor teaching effect of the traditional English classroom. The ecological construction of English classroom is to regard everything related to English classroom teaching as a whole, and develop each English teaching in a balanced way, which is a sustainable teaching plan. The integration of multimedia information technology into ecological English classroom instruction is able to expand the range of English classroom teaching, therefore it lets students comprehend English teaching materials with more high efficiency. When we carry out comparison between ecological English classroom teaching which uses multimedia intelligent information technology and traditional English classroom teaching, the results show that in primary school English courses, the average teaching effect of ecological English classroom teaching depending on multimedia intelligent information technology and traditional English classroom teaching is 79.6% and 72.4% separately. In middle school English courses, the average teaching effect of ecological English classroom teaching that is based on multimedia intelligent information technology and traditional English classroom teaching is 83.4% and 78% respectively. As the consequence, ecological English classroom teaching which is supported by multimedia intelligent information technology thus can significantly promote the efficiency of English classroom teaching in primary and secondary schools.