The paper examines the China's bilateral trading volume with its fourteen trading partners by using the gravity mode, and other explanatory economic factors: (gross domestic product) GDP, differential GDP per capita, real exchange rate, population and geographical distance. Among these estimated economic factors, differential GDP per capita is also used as the proxy variable for the Linder effect. The data used in the estimation has been collected from 2001 to 2010. The results from the statistical tests generally are in line with the theoretical expectations; and the Linder hypothesis is supported.