This　paper　presents　a　FPGA-based　integrated　controller　for　liquid　crystal　display　system.　The　system　consists　of　a　display　module　and　a　controlling　module.　The　former　(LCM101　chip)　is　10　bit　multifunctional　device　with　a　WDT(watch　dog　timer),　a　dual　frequency　driving　circuit,　a　display　RAM　and　serial　interface.　The　later　is　an　integrated　display　controller　using　a　FPGA　chip　of　1.5　million　gate　(Xilinx　XC3S1500),　so　being　easy　to　extend　and　upgrade.　Integrated　controller　design　in　FPGA　chip　has　been　implemented　by　using　Verilog　language　coding　and　verified　in　Xilinx　Development　Board.　The　design　fits　the　requirements　to　control　liquid　crystal　display　entirely,　and　is　successfully　applied　in　a　grating　measurement　system.　The　controller　module　includes　four　parts;　storage,　decoding,　serial-parallel　interface　translation,　and　output　controlling.　This　paper　discusses　the　design　method　and　the　design　process　of　each　part　above,　providing　Verilog　codes　partly.　What＇s　more　a　low-cost　accessory　is　originally　located　between　FPGA　chip　and　power　supply　in　hardware　design　to　satisfy　delay　after　liquid　crystal　electrify,　realizing　the　delay　of　initialization　command　sending　and　saving　more　resource　of　FPGA　chip.