Abstract: Adult higher education bachelors degree English test, as a test of examinees English proficiency, is of great significance to comprehensively and objectively analyze the quality of assessment tools Taking the Beijing area as an example, the Rasch model was used to evaluate the test quality in terms of one-dimensional test, item fit degree analysis, bubble chart and so on The results show that the test can reflect students real English level on the whole, the difficulty arrangement is simple, and the item fit degree is good, which can achieve the expected test effect The degree English test in adult education is designed to measure students basic English ability, that is, the test should not contain the items with higher difficulty levels However, considering the test should reflect the real English level of students with stronger ability, it is better for the test to involve a few items with higher difficulty levels.

Key words: web-based education, Rasch model, degree English test, quality analysis