The invention discloses a graphic display system for a nuclear power plant safety-level DCS system. The graphic display system comprises a bus interface, a FGPU functional block, a BUFFER0, and a BUFFER1, wherein the bus interface is used for achieving the interfaces of the system and other external processors; the FGPU functional block is used for sequential control, drawing task scheduling, control instruction state decoding, and LCD display refresh control; and the BUFFER0 and the BUFFER1 are used for generating graphic data, and performing access control on static random access memories SRAM0 and SRAM1. The graphic display system solves the defect of the graphic display control of a conventional nuclear power plant safety-level DCS system, realizes the technical effects of flexible system interface, perfect functions, open-source design, open architecture and simplified hardware design.