Taimushan and Gushan are located in the southeast coastal areas of Fujian Province. Petrology and petrography studies have shown that Taimushan and Gushan granites belong to aluminous A-type granitoids and alkaline A-type granitoids respectively. Based on granites of the two regions, the authors focused on the difference of two types of A-type granites in the eastern coast of China in terms of the petrology, petrography, geochemistry and discrimination diagrams.