It is only when learners have the desire and need to learn a foreign language that they have the action of learning a foreign language (Gardener, 1985). Therefore, under the guidance of a variety of foreign language learning motivation theories, this research takes 150 students from Nanan Middle School in Longxi County as the research object, and collects data through a questionnaire on junior middle school students' English learning motivation. This thesis analyzes and probes into the present situation of middle school students' English learning motivation, and the main factors influencing middle school students' English learning motivation. The final conclusion is as follows: a number of junior high school students like to learn English and are willing to spend time and energy to learn English, the intensity of learning motivation is relatively high. According to the investigation and analysis, this thesis summarizes the factors that affect the students' English learning motivation in Nanan Middle School. From the external factors, there is a social environment that stimulates students' English learning motivation, a family environment that attaches importance to students' learning and a certain school environment. From the perspective of internal factors, students' past knowledge and experience, as well as students' attitude towards learning English will affect students' English learning motivation.