Many college English teachers lay emphasis on language meaning instead of language forms in order to satisfy the need of new college English curricular, change the present situation of "dumb-and-deaf English" and improve the students' communicative competence. This approach upgrades the fluency but slows down accuracy, which results in inter-language fossilization. Focus on form in college English can improve both the fluency and accuracy of English language, which are crucial for the learners of English to improve the communicative competence. This paper objects to finding out the practicability of focus on form, the process of practicing focus on form and the effectiveness of the process.