For the convenience of electricity supply Department of the user documentation,user equipment using electrical property and electricity need to phase out,so developed GPS and GPRS based remote synchronization detector.The device uses a high-precision A/D chip ADS8556 and Cortex-M4-core processor STM32F407.Under the pulse,the device of three-phase flow signal of non-synchronous sampling,adopted 4 item 5 order Nuttal windowed interpolation algorithm parameters.Transmission through GPRS technology with initial values when data,receive initial values information for identification of phase failure and phase sequence.Field tests show that the method in which the device can accurately remotely identifying phase and phase sequence.