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Aiming at the problem that the core industrial SRAM-based FPGA chip XC7V690T has weak anti-irradiation capability and risk of single-event upsets(SEU) during the periods of on-orbit operation, in order to improve the on-orbit anti-SEU capability of industrial SRAM-based FPGA chip XC7V690T and the flexibility of configuration file for modification, an on-orbit anti-SEU system architecture based on XC7V690T is designed. The hardware architecture is mainly composed of XC7V690T SRAM-based FPGA chip, AX500 anti-fuse FPGA chip and multiple FLASH chips. The software architecture mainly includes XC7V690T configuration management and monitoring management by AX500 anti-fuse FPGA, on-orbit reconstruction management of XC7V690T, and invoking the internal Soft Error Mitigation (SEM) IP core to realize the independent monitoring and maintenance of configuration RAM resources of XC7V690T. On-orbit verification results show that the SEM error correction of a spacecraft communicator based on industrial SRAM-based FPGA chip is carried out successfully during the periods of on-orbit operation, and the spacecraft communicator using this scheme works stably during the periods of on-orbit operation. It provides a stable communication link and meets the application requirements. The architecture can effectively improve the anti-SEU capability of XC7V690T, which can provide reference of anti-SEU design for other SRAM-based FPGA.