In recent years, intelligence is the new direction of today's social development, and it is also a new feature of the development of informatization. With the rapid development of technologies such as artificial intelligence, the Internet of Things, big data and cloud computing, smart products and devices such as smart homes, smart robots, smart toys, and smart buildings have emerged, which have brought great changes to people's life and work styles. Through the constructive research on artificial intelligence algorithms, this paper designs a relevant information-based English learning platform, which can greatly improve the efficiency of English learning in the traditional textbook mode, and cultivate the interest and enthusiasm of college students to learn English. Through the research of artificial intelligence algorithm, this paper finds that informatization of constructive English learning platform focuses on building the ecological environment of students' autonomous learning, which can greatly improve students' autonomous learning ability, it take the student as the center, to provide learning resources and learning methods, at the time let the students actively constructing autonomous learning awareness, respect and encourage students to have different progress and development. The final results of the study show that the number of students who choose learning interaction is the largest, accounting for 41%, followed by the number of students who choose independent learning, accounting for 31%. It can be concluded that students attach most importance to learning interaction, which can greatly improve students' enthusiasm and initiative in learning.