Abstract：Global Positioning System (GPS) measure campaign in shear zone at lowlatitudes was conducted in 1991 and 2003, for quantifying the presentday major faults’ activity. The results are as follow,the north Antolia fault , Jiali fault, Sagaing fault and Sumatra fault are right lateral motion, the rates are（13.7±0.6），（5.8±0.5）（7.1±1.0），（12.7±0.2）and(25.4±0.5）mm/a respectively; while the Sorong fault and Guatemala fault are left lateral motion ,the rates are 29.2±1.8）,(14.1±1.0)mm/a， respectively . Besides, Sumatra fault and Jiali fault also show strong squeezing, (18.5±1.0), (15.2±0.6) mm / a， respectively, while Sorong fault show powerful pull, reached to : (10.7±1.1) mm / a. Overall, the shear activity dominats in the shear zone at lowlatitudes.
