The utility model provides a remote monitoring device based on GPRS network, the automatic rainfall acquisition and transmission system comprises a data acquisition module, signal isolation module, the control modul, storage module, GPRS transport module, alarm module, data acquisition module includes pressure sensor, the conflagration sensor, infrared sensor, image collector, voiceReader, the signal isolation module input is connected to the data acquisition module output, signal isolation module output connection control module, storage module, alarm module is the connection control module respectively, control module passes through GPRS transport module and connects remote intelligent monitor terminal, the utility model discloses the structure principle is simple, utilizes GPRS network technique, has improved the real -time of reporting to the police, can serve for remote monitering system, in addition, adopts signal isolation module, has improved the interference killing feature of signal in the transmission course, has increased signal transmission's stability.