Abstract: The thesis builds a new method that the least squares methodis usedfor regression analysis on curvefitting of customer prospective profit which is the key factor in the calculation,and the customer prospective profit function is reached.1b give a detailed demonstration,the thesis takes the China Construction Bank as an example and does the goodness of fit test and level of significance test on the calculation results.

Key words: customer equity, customer value, customer prospective profit,least squares method, curve fitting