The invention discloses a marine monitoring early warning terminal based on Beidou navigation communication. The terminal comprises a shell and a main circuit board in the shell, the main circuit board comprises a Beidou positioning module, a processor, a sensor module, a 4G transmission device, a touch screen module, an audio module and a Beidou short message communication module, and the Beidoupositioning module, the processor, the sensor module, the 4G transmission device, the touch screen module and the audio module are respectively connected with the processor. Under a condition where mobile network communication is good, the terminal can communicate with the server through the 4G transmission device; when the terminal is in a dead zone of a mobile network, the terminal can communicate with a satellite through the Beidou positioning module, and thus, a problem of navigation and remote control of the dead zone of the mobile network is solved; moreover, the terminal can plan a route again according to early warning information of a remote monitoring center and avoid dangerous areas, also can perform dangerous situation alarming for the remote monitoring center, and can improvesafety of sailing of ships.