Abstract: During the Great Proletarian Cultural Revolution, we organized scientific research workers to put the study of Marxism, Leninism and Mao Tsetung thought into the first place in their work, directed them to apply materialist dialectics to critisize the viewpoints of idealism and metaphysics in scientific research and guiding scientific experiment. Through the good examples, we have further promoted the study of Marxism, Leninism and Mao Tsetung thought in our institute. In recent years, scientific research workers studied and applied materialist dialectics more consciously on the road of integrating themselves with workers and peasants and obtained significant achivements in breeding new varieties, cultivation management, and reform of experimental methods in wheat, millet and sesame.