Abstract: On the basis of deep understanding of Beidou-1 navigation satellite system, combined with the geological survey work flow, the key technique and system application model of the integration of Beidou-1 navigation satellite system and the digital geological survey system were studied. The result shows that, based on the dual mode position report mechanism of Beidou-1 and GPS, stable position service can be supplied for the geological researcher; the interworking between Beidou-1 terminals and mobile phone short messages can be connected in remote area without mobile phone signals. The DGSInfo system based on Beidou-1 will realize real time monitoring and command at field station which contributes to the field of emergency response and disposal. GSIGrid geological survey management and safety service system will realize center node monitoring the moving path and short message of moving nodes. It can also supply information inquiry service and data support to emergency disposal and decision making. The integrated system has achieved good results in field geological survey in southwestern, northwestern and northeastern China.