Abstract: Based on the statistical analysis of students’ peer error-correction of English book reports in Higher Vocational Schools,the following conclusions can be derived:Some other errors  existed besides the types summarized by Larsen-Freeman and long（2000）;Students’ error-correcting awareness and abilities are poor,mainly at the syntactical level;Attrition also occurs in the process of foreign language learning.

Key words: error types, peer error-correction, foreign language attrition