The invention discloses an information ventilation control device for an agricultural greenhouse, the device relates to the technical field of ventilation for agricultural greenhouses, and mainly solves the problem that air in the greenhouses cannot be quickly ventilated and moistened due to drying. The information ventilation control device comprises a greenhouse main body, sensors, planting soil, a water tank, ventilation devices and spraying devices, wherein the planting soil for planting is arranged at the lower part of the interior of the greenhouse main body; the water tank is arranged outside the greenhouse main body; the upper part of the water tank is communicated with a water flow channel; a plurality of the spraying device are arranged at a transverse part of the water flow channel and are connected through a conveyor belt; and the ventilation devices are symmetrically arranged at the upper parts of the inner surfaces of the left and right walls of the greenhouse main body.The device effectively solves the problem of air drying in the greenhouses, can quickly ventilate and moisten the air, has high efficiency, keeps the air in the greenhouses fresh, reflects the changesof the environmental parameters in the greenhouses in real time, and is more beneficial to plant growth.