The invention discloses a double-interface intelligent card simulator based on a field programmable gata array (FPGA), which is high in efficiency and reliability, low in cost and high in performance and comprises a simulation antenna, a contact type card surface, an analog front end and a simulation unit. The analog front end is in non-contact type communication with the simulation antenna through a wireless passage, communication between the analog front end and the simulation antenna follows an international standardization organization (ISO)/ international electrotechnical commission (IEC) 14443 TypeA international standard, contact type communication between the contact type card surface and the analog front end is achieved through a wire passage, communication between the analog front end and the contact type interface follows an ISO/IEC 7816 international standard, the simulation unit is communicated with the analog front end through the wire passage, and the analog front end and the simulation unit follow a universal serial bus (USB) v 2.0 communication protocol. The simulation antenna and the contact type card surface simulate communication modes with a reader under two working modes, the simulation unit is achieved through an FPGA chip, the analog front end is achieved through a radio frequency chip, and the priority of the communication mode between the analog front end and the contact type interface is higher than that of the communication mode between the analog front end and the simulation antenna.