Abstract: Aimed at meeting aircraft navigation requirements such as a lack of the air-ground environ-ment warning and the difficulty of decision-making，this paper considers the Threat Situation Information Field Model for Airport Environment.It puts forward modeling and updating methods using multi-source，multi-scale，multi-distributed data for analyzing threat situation information from read time connection data，fulfilling fast data indexing needs. The experimental modeling results for Nyingchi Airport show that a dynamic threat environment situation map can be built accurately and efficiently with this method.