The invention relates to a site enforcement recorder and mobile terminal backward code scanning bundled ternary alliance uploading system. The system comprises a site enforcement recorder, a data acquisition workstation, a concentrated storage server, a response alarm platform server, a mobile terminal, a police service private network server, an isolation gatekeeper, a ternary alliance server anda management computer, wherein the police service private network server, the data acquisition workstation, the concentrated storage server, the response alarm platform server, the ternary alliance server and the management computer are connected through a private network; the mobile terminal is wirelessly connected with the police service private network server through a mobile police service wireless private network; and the police service private network server is connected with the private network through the isolation gatekeeper. According to the system, audios, videos and photo data ofthe site enforcement recorder can be automatically associated to a response alarm platform and automatic uploading of recorded data is realized, so that the intelligence degree is improved, the workload of front-line policemen is lightened, the association efficiency is improved, the association correctness is enhanced and the law enforcement and case handling are standardized.