This paper aims to controllably generate and edit layered 3D characters based on hand-drawing. Existing methods either generate 3D characters through global optimization or coupled representations, which makes it difficult to perform fine-grained local editing or change clothing for the character. To achieve controllable generation and part-level editing of high-quality 3D characters with changeable clothing, we propose an innovative layered 3D character generation and editing method based on sketches. Specifically, to achieve controllable generation and part-level editing in a layered manner, we propose an innovative sketch-to-3D decoupled generation network for fine-grained character generation and editing. To ensure the generated character model contains fine textures and complex geometric structures, we propose a sketch-aware progressive upsampling module to achieve high-quality character appearance. Extensive experiments on public datasets and even in-the-wild data demonstrate that our approach not only generates high-quality layered 3D characters but also enables fine-grained local editing through hand-drawn sketches.