In the paper,the statistical analysis and classification of V-N collocation errors in higher vocational college students' writing is conducted to discuss the characteristics and the reasons of V-N Collocation Errors.Diagnostic analysis reveals that interlingual factors,intralingual factors,induced factors and ambiguous factors are the main causes for the collocation errors.In accordance with the research result,this paper puts forward some related suggestions in English writing teaching,which is making comparison with Chinese,putting emphasis upon the difference of verbs,using corpora when teaching V-N collocations.