The invention discloses a field operation safety mutual aid warning device which comprises a hose machine and a wrist watch. The host machine comprises a radio frequency transceiver, a Zigbee communication module, a sound pickup, an audio frequency codec, an audio frequency amplifier, a loudspeaker, a master controller, a displayer, keys, a power control module, a data memory, an acceleration sensor module and a global positioning system (GPS) module. The wrist watch comprises a radio frequency transceiver, a master controller, an acceleration sensor module, an infrared emission module, an infrared pulse signal receiving and amplification shaping module, keys and a power control module, wherein the master controller is connected with the radio frequency transceiver, the infrared pulse signal receiving and amplification shaping module, the acceleration sensor module, the keys and the power control module. When an operator encounters a sudden accident or a danger, real-time warning about the state and the position of the operator can be sent to a teammate and a manager in time, and therefore rescue efficiency is improved, unexpected casualty accidents of field operation personnel can be prevented or reduced, and life safety of the personnel is guaranteed.