The invention provides a fixed source atmospheric 
pollutant emission site law 
enforcement supervision 
information system and method, and the method comprises the steps: determining a law 
enforcement task, and carrying out the regional supervision, concealed law 
enforcement or field law enforcement of an enterprise according to different law enforcement tasks; carrying out the law enforcement 
evidence collection, providing 
data input and transmission ports for providing law enforcement 
evidence collection data according to different law enforcement task requirements, including using an unmannedaerial vehicle and a law enforcement vehicle to carry various sensors to carry out remote measurement and transmission on 
environmental data, and using various handheld portable monitoring sensors tomonitor and transmit the 
environmental data; meanwhile, enabling a law enforcement officer to select law enforcement 
list templates of different industries to realize quick input of on-
site monitoring results; identifying illegal behaviors, and 
coupling the illegal behaviors with punishment; carrying out law enforcement summary, including summarizing and displaying law enforcement tasks, law enforcement evidence obtaining processes and results, enterprise illegal behaviors and punishment references; and carrying out the law enforcement commanding, thereby achieving the remote commanding and auxiliary decision-making functions of on-site environment law enforcement.