A　flat-panel　display　backlight　module　based　on　blue　laser　diode　is　designed,　which　is　composed　of　light　guide　module　and　light　guide　plate　(LGP).　The　scheme　of　keeping　apart　the　light　guide　module　and　LGP　is　used　in　the　process　of　designing　optimization.　A　light　guide　module　whose　horizontal　part　distributes　regularly,　vertical　part　distributes　unanimously　in　the　transmission　process　and　LGP　network　with　uniform　output　light　distribution　are　designed.　The　LGP　sample　is　produced　by　adopting　the　method　of　laser　dotting.　Theoretical　simulation　shows　that　the　intensity　of　illumination　uniformity　can　reach　89.02%,　and　the　average　value　of　corner　can　reach　102.74%,　for　the　whole　module.　And　experiment　measurement　shows　that　the　intensity　of　illumination　uniformity　can　reach　79.61%,　the　average　value　of　corner　can　reach　100.10%.　The　structure　of　this　backlight　module　is　simple,　and　it　can　offer　back　lighting　for　the　liquid　crystal　display.　©　2017,　Chinese　Lasers　Press.　All　right　reserved.