English writing is the college students’synthetical application about the knowledge of English.English writing,however,is the weak segment of the college students’English learning all the time.Based on the researches home and abroad,the paper makes an implicational study on interlanguage fossilization in English writing of Chinese college students.Though probing the causes of fossilization in English writing,the paper proposes some measures to reduce the fossilization.In the chapter one,the paper introduces simply the interlanguage fossilization.In the chapter two,the paper analyzes college students English writing and get the causal factors of fossilization:unfavorite learning motivation of students,ineffective feedback to errors,interference of the mother tongue.Then,at the last chapter,the paper put up some measures to overcome and avoid the fossilization in college students’English writing:promoting students’motivation,providing right feedback,avoiding mother tongue interference.