In English teaching, developing students' reading habits has been emphasized for its critical role in promoting overall core competencies. However, in practice, many teachers and parents are not informed of the effective approaches to developing good English reading habits, hindering the overall development of students' core competencies. In light of this, an empirical study was carried out to explore the developmental features of students' English reading habits and individual, family and school factors that affect its development. A questionnaire was adopted to collect quantitative data. A total of 2,130 primary and secondary school students from China participated in the study. The results indicated that their English reading habits varied with age and gender. In terms of age, secondary school students, especially middle school students, performed better than primary school students. In terms of gender, females performed better in reading frequency, reading time and ways of reading, while males had a larger reading volume. Reading habits were found to be impacted by individual, school and family factors. Among them, age had the strongest influence on the development of English reading habits. These findings shed light on effective ways to develop English reading habits, especially in foreign-language-learning contexts.