RF　front-end　design　is　one　of　the　most　important　steps　in　receiver　design,　and　its　noise　performance　has　a　significant　impact　on　the　received　signal　noise　characteristics,　baseband　processing　performance,　the　final　positioning　accuracy　and　other　indicators.　The　theoretical　IF　value　of　the　satellite　signal　received　by　the　receiver　and　the　frequency　search　range　of　the　signal　acquisition　algorithm　depend　on　the　frequency　setting　scheme　of　the　RF　front-end.　This　paper　introduces　the　RF　front-end　design　of　a　dual-channel　multi-mode　multi-frequency　receiver,　mainly　for　BI1　and　L1C　frequency　points,　the　circuit　design　of　the　RF　end　of　the　receiver　is　introduced　in　detail,　and　the　corresponding　solutions　are　introduced　for　the　link　attenuation,　signal　radiation,　electromagnetic　interference　and　other　conditions　of　the　RF　link.　And　the　corresponding　link　simulation　is　carried　out　through　ADS　to　ensure　the　reliability　of　the　design.　The　final　product　is　tested　by　the　corresponding　hardware　and　software,　and　the　expected　effect　is　achieved.　©　2022　ACM.