Abstract: Traditional plant protection machinery is with poor quality and low efficiency, even affects all ecological system. Intelligent plant protection machinery, which bears the promises of low cost, high efficiency and environment-friendliness, is still at the experimental stage. Based on analyzing the features of intelligent plant protection machinery, the necessity for establishing databases was put forward, and several specialized databases were designed such as the meteorological database, forest pests and diseases management database, plant protection machinery database, chemical application decision making dataset and plant protection machinery decision making dataset. This part of the project provided a case study showing how to prevent and control forestry pests and diseases effectively by using proper climate conditions, proper sciences and technologies.