At This paper According to Cobb-Douglas production function and method of solow′ remaining value, took a certain index of the percentage of number of employed persons in tertiary industry to aggregate employed persons as an alternative variable of technological standing variation, based on my previous study estimated Yibin capital stock between 1990-2010, combined with relevant statistical data, using EXCEL software make regression analysis to estimate aggregate production function and different factors' s contribution of the Yibin City between 1991 and 2010. The conclusions is obtained that Yibin City' s economic growth model is still in serious capital-driven and suggestions were put forward.