Liaodong peninsula is located in the northeastern part of North China Platform. The basement of platform in this district is composed of Archean-Paleoproterozoic metamorphic rocks and granitic complex with sedimentary rocks covering. Mesozoic and Cenozoic rocks sporadically occur in some subsidence basins. Multiple tectonic movements and metamorphism and magmatism with multi-mineralization following formed various U deposits. Based on knowledge obtained from long standing working, this paper presents an overview of crust evolution and different U mineralization at last propcaes the form- ing conditions and recognition for U ore. Liaodong peninsula is located in the northeastern part of North China Platform. The basement of platform in this district is composed of Archean-Paleoproterozoic metamorphic rocks and granitic complex with sedimentary rocks covering. Mesozoic and Cenozoic rocks sporadically occur in some subsidence basins. Multiple tectonic movements based on knowledge obtained from long standing working, this paper presents an overview of crust evolution and different u mineralization at last propcaes the form-ing conditions and recognition for u ore.