Abstract: The agriculture scientific and technological demonstration district is one of important components in the structure adjustment of agricultural industry and plays a more and more crucial role in the structure adjustment. The article takes Taishan Trees and Flowers Scientific and Technological Demonstration Districts in Shandong Province as an example and theories and methods in the planning and design of modern demonstration districts were analyzed and researched through the crossing and mixing of multi-subject in the planning and design of the demonstration districts. Compared to traditional agricultural demonstration districts planning, content of the modern agricultural demonstration districts is more adapted to the development demand of modern agriculture. Its function structure and the space layouts are more perfect, it can provide more economic, ecologic and social benefit and eventually it can achieve its self-maintenance and sustainable development.