In modern society,good communicative ability is very important;it plays an important part in communication.But as college students,who enter into the society newly,their interpersonal range is expanded constantly;to a certain extent,there are some communication disorders which many students'worries in life and study are relevant to.So this text will analyze the poor communicative ability from internal and external factors.And then give several suggestions about how to cultivate the college students'communicative ability.