Greenhouse flower watering device based on Internet of Things control

The invention provides a greenhouse flower watering device based on Internet of Things control. The greenhouse flower watering device structurally comprises a fixing lantern ring, a high pot rack, a soil humidity supplementing spray ring, an emitting terminal, a water inlet pipe, a differential humidity control device, an external power line, an Internet of Things detector and sprayers, wherein the bottom of the fixing lantern ring is fixedly connected to the top of the high pot rack through electric welding, the top of the external power line is embedded into the bottom of the Internet of Things detector, and the back of the Internet of Things detector is fixedly provided with the front end face of the differential humidity control device. Power transmission between an energizing terminaland an electricity conducting terminal is achieved through water in an insulated blocked mechanism, power conveyed by the device makes suction force of a weak suction block increased, and therefore,a flow control mechanism i