Dual deck shale shaker is a new type of solids control shale shaker for oilfield drilling. Dual deck shale shaker is the product of continuous improvement and upgrading of oilfield drilling solids control technology. It has high-performance components and can adapt to different drilling solids control conditions. The dual deck drilling mud shale shaker adopts a modular screen structure with a large screen area. This shaker can replace the traditional solids control system as an all-in-one model. It reduces the cost of equipment such as desilter, desander, etc.