The　applicability　of　reactive　power　planning　model　is　significantly　impacted　by　the　huge　amount　of　renewable　energy　sources　loads　that　bring　about　the　functioning　uncertainty　of　the　distribution　network.　This　paper　proposes　a　bi-level　reactive　power　planning　approach　that　combines　the　planning　with　the　operation　while　taking　into　account　the　suppressing　effect　of　the　SVG　(Static　Var　Generator)　on　the　voltage　uncertainty.　Firstly,　an　affine　power　flow　model　is　built　with　the　dynamic　voltage　regulation　strategy　of　the　SVG　in　consideration,　and　an　affine　power　flow　algorithm　is　proposed　to　obtain　the　range　of　the　current　state　quantity　while　satisfying　the　capacity　constraint　of　the　SVG.　On　this　basis,　a　bi-level　multi-objective　reactive　power　optimization　configuration　model　is　established,　taking　the　operational　uncertainties　into　account.　The　configuration　of　SVG　and　capacitors　are　optimized　with　the　purpose　of　reducing　the　scheme’s　equivalent　annual　total　cost　and　the　voltage　fluctuation.　Finally,　an　example　is　given　to　verify　the　rationality　and　economy　of　the　uncertain　reactive　power　planning　scheme.　©　2023　Power　System　Technology　Press.　All　rights　reserved.