Abstract: In order to obtain consistent high-precision positioning results with GPS carrier-phase measurements,cycle-slips must be correctly detected and removed or handled at the data processing stage.This paper proposes a new cycle-slip correction method.The approach includes generating and filtering cycle-slip candidates.It can be derived directly from the observation triple-difference time series under simple assumption.Compared with conventional methods,this method needs not prediction values of the measurements.The method is suitable for continuously cycle-slip.Theory and test show the method can correct all cycle-slip.