Fifteen GPS stations in the Batan-Luzon area were surveyed three times during 1996 to 1998. In order to study crustal deformation in the Taiwan-Luzon region, the data from these annual surveys are processed together with data from 20 permanent stations in the Taiwan area and IGS stations in the Asia-Pacific region. We found that the Chinese continental margin is moving in directions of 102¿--112¿ with rates of 11--12 mm/yr relative to stable Eurasia. There is a significant southward increase in crustal motion with respect to Eurasia along the N-S trend of the Luzon arc. In the Coastal Range of Taiwan, the velocity is 53 mm/yr in the direction 313¿. Further south at two volcanic islands, Lanhsu and Batan, the velocities increase to 68 mm/yr in the direction 306¿ and 81 mm/yr in the direction 299¿, respectively. In northern Luzon the velocity reaches 86 mm/yr in the direction 301¿. Remarkable fault slips of 17--31 mm/yr across the Philippine fault system are detected. ¿ 1999 American Geophysical Union