The invention discloses a greenhouse detection and control system, and relates to the technical field of greenhouse control. The greenhouse detection and control system comprises a greenhouse, which is composed of glass and a stainless steel skeleton, wherein a plurality of planting areas are arranged in the greenhouse, a temperature adjusting system, a spraying system, an illumination intensity adjusting system, a carbon dioxide generation adjusting device, a networking monitoring system and an intelligent detection control adjusting system which are connected with a main controller are arranged in the greenhouse, a photosensitive sensor and an alarm prompting device are arranged on the roof of the greenhouse, a temperature sensor, an air humidity sensor, a carbon dioxide concentration sensor and an open fire and combustible gas sensor are arranged in the middle of the greenhouse, and a soil humidity sensor is arranged in the planting area. According to the invention, the air temperature, the air humidity, the illumination intensity, the carbon dioxide concentration and the acid-base property and the humidity of soil in a greenhouse are automatically controlled through intelligentequipment, the environment in the greenhouse can be controlled more easily through networking display of environment parameters, and the growth environment of plants is met.