The invention relates to a film box office monitoring system and a film box office monitoring method. The film box office monitoring system mainly comprises an intelligent seat module, a distributor monitoring terminal module, a showing module, a ticket selling module and a central supervision server. The intelligent seat module is used for checking a film ticket held by an audience, and a seat is unlocked to allow the audience to sit in the seat if the checking is successful, otherwise, the seat is not unlocked. The distributor monitoring terminal module is used for monitoring box office. The showing module is used for showing a film, transmitting film information shown at present to the central supervision server every 5 minutes, and snapshooting and transmitting a frame of a film image played at present to the central supervision server. The ticket selling module is used for selling film tickets. The central supervision server sends out corresponding commands or information to the modules according to analysis results. The film box office monitoring system and the film box office monitoring method eradicates the fraudulent means such as double systems, hand-written tickets, rewritten tickets, group tickets, omitted and concealed report, and ''A, B'' box office in the current film box office market, and has good market application prospect.