This paper at the base of the geotectonic setting analysed in west-northern China，according to basement tectonic nature about carry within itself Mesozoic and Cenozoic sedimentary basin formation，it may be divided into 3 tectonic type，which include intraplate platform type and plate margin fold orogenic belt type plate margin intermediate zone type. The plate margin fold orogenic belt type may divide further into 2 subtype, which include ocean lean fold orogenic belt type and continental lean fold orogenic belt type. Metallogenic basin of the sandstone type uranium ore is relation to structural setting of the basin and its type. Metallogenic basin of the sandstone type uranium ore is mainly plate margin fold orogenic belt type, second intraplate platform type. The sandstone type uranium ore have obvious selectivity to sedimentary formation type of the basin, its primary deposite be all gray bed under warm-damp climate condition, its primary geochemical type for rock be black or gray. The Mesozoic and Cenozoic sedimentary basin in west-northern China，the prospecting target stratum or ore-bearing formation for groundwater leaching sandstone type uranium ore are mainly middle-lower Jurassic system(J1-2) and upper Cretaceous system(K2), second lower Cretaceous system(K1), uranium ore in other geological time stratum is fragmentary distribution ,metallogenic potentiality is very little.