A system for intelligently monitoring and controlling crop pests and diseases, comprising a monitoring computer (1) and a pesticide spraying device (11) arranged in a crop growing place, wherein the monitoring computer drives the pesticide spraying device connected with the monitoring computer. A time controller and a pesticide spraying selective driving module are arranged in the monitoring computer, and the time controller controls and starts a corresponding spray head of the pesticide spraying device through the pesticide spraying selective driving module. The system has the following advantages that: first, high level of intelligence and automation, manifold control modes, in time control, and excellent using effect second, using the solar energy as power supply of the monitoring equipment, the energy-saving effect is prefect third, the monitoring equipment not only can automatically control the water supply or the pesticide spraying of cultivated crops, but also has a multi-aspect management and control capability of controlling pests and diseases of the crops in different areas of the same place and fourth, monitoring the health condition of the crops in real time via a monitoring probe, the crop pests and diseases are pre-warned in time and are controlled appropriately. Therefore, the system is not only beneficial for ensuring the growth of the crops and the harvest of agriculture, forestry and tea industry, but also can greatly reduce medicament waste and pesticide pollution.Linvention concerne un système pour contrôler et réguler de manière intelligente les nuisibles et les maladies des cultures, lequel comprend un ordinateur de contrôle (1) et un dispositif de pulvérisation de pesticide (11) situés dans une parcelle où poussent les cultures, lequel ordinateur de contrôle actionne le dispositif de pulvérisation de pesticide connecté à lordinateur de contrôle. Une unité de commande temporelle et un module dactionnement sélectif de pulvérisation de pesticide
