A high-frequency electric knife control system and a control method thereof. The control system comprises an electric knife activation foot rest (11), a master-slave control system (12), and a high-frequency electric knife activation hardware arbitration module (13); the electric knife activation foot rest (11) is separately connected to the master-slave control system (12) and the high-frequency electric knife activation hardware arbitration module (13); the high-frequency electric knife activation hardware arbitration module (13) comprises a logical OR circuit (131), several logical AND circuits (132), and switching elements; the logical OR circuit (131) is used for performing logical OR operation on the contact signal of the electric knife activation foot rest (11); one hardware control signal output from the logical OR circuit (131) is sent to the master-slave control system (12) for feedback; the other hardware control signal output by the logical OR circuit (131) separately performs logical AND operation with several software control signals sent from the master-slave control system (12); the logical AND operation result is used for controlling the switching of the action of the switching elements connected to a high-frequency electric knife generator (14).La présente invention se rapporte à un système de commande de couteau électrique haute fréquence et à un procédé de commande correspondant. Le système de commande comprend un repose-pied d'activation (11) de couteau électrique, un système de commande maître-esclave (12) et un module d'arbitrage matériel d'activation (13) de couteau électrique haute fréquence ; le repose-pied d'activation (11) de couteau électrique est relié séparément au système de commande maître-esclave (12) et au module d'arbitrage matériel d'activation (13) de couteau électrique haute fréquence ; le module d'arbitrage matériel d'activation (13) de couteau électrique haute fréquence comprend un circuit logique OU (131), plusieurs circuits