This paper expatiates on the importance of customer resource and analyses customer churn-the common difficult problem to operators. It theoretically points out the shortcoming of the means for customer holding in the past and analyses the new way to prevent customer from churning. After that

this paper summarizes some key points to the data mining projects which have the subject of customer churn management in telecommunication. Finally

it puts forward the data mining based framework for the solution of customer churn.