To　investigate　the　effect　of　Fluid-Structure　interaction　of　the　renal　artery　with　radiofrequency　electrode　under　the　situation　of　pulsatile　blood　flow,　the　ideal　renal　artery　model　that　contains　electrode　was　constructed　by　Solid　Works.　The　renal　arterial　bifurcation　vessel　model　with　electrode　and　non-containing　electrode　was　selected　for　comparison.　Comsol　software　was　applied　to　mimic　the　pulsatile　blood　flow.　Six　key　points　was　selected　for　the　analysis　of　hemodynamic　parameters.　The　distribution　of　velocity,　pressure,　the　equivalent　stress　and　the　deformation　of　the　vascular　wall　were　obtained.　Compared　to　the　pure　arterial　model,　the　speed　is　reduced　and　the　pressure　and　equivalent　stress　are　increased　at　point　F　When　containing　electrode.　However,　the　deformation　of　vessel　walls　caused　by　this　is　very　small　and　can　be　neglected.　And　the　velocity　pressure,　equivalent　stress　and　deformation　of　point　B　are　relatively　small　at　the　same　time.　which　to　some　extent　protects　the　blood　vessels.　In　combination,　the　insertion　of　RF　electrode　does　little　harm　to　the　arterial　blood　vessels.