nty of Ningxia. plement to PBC ’s personal credit information system , the system has collected piled finished the credit information of 260000 urban and rural residents in Pingluo county , and mercial banks the credit information query of urban and rural residents. After pletion of the construction of the system , the problem of asymmetric information between urban and rural residents mercial banks can be solved , and the difficulty of farmers in getting loans can be alleviated. The paper sums up some feasible practices in the system construction , fully refines the effects of the system construction. And on this basis , the paper puts forward the idea on further promoting the system construction. Keywords : financial science and technology; credit system; software development 责任编辑、校对:苗文龙