Abstract: This paper introduced the morphological characteristics, physiological characteristics, symptoms, occurrence regularities and modes of transmission of oil sunflower Sclerotinia sclerotiorum. In order to control oil sunflower Sclerotinia sclerotiorum, reduced seeds infection should be in the first place, and actively carried out plastic mulching, furrow planting, crop rotation, wide-row close planting and intercropping, strengthened soil managements and field managements, optimum sowing and harvesting by stages. Control oil sunflower Sclerotinia sclerotiorum should based on agriculture control, supplemented by chemical control, and used integrated control.