Greenhouse ventilation device for strawberry breeding

The utility model discloses a greenhouse ventilation device for strawberry breeding, which belongs to the field of greenhouse ventilation devices and comprises a greenhouse, a temperature sensor is arranged on the inner wall of the greenhouse, a humidity sensor is arranged on one side, close to the temperature sensor, in the greenhouse, and a fan is arranged on the left side of the greenhouse. When the temperature in the greenhouse is too high, a signal is fed back to the PLC through the temperature sensor, the second air inlet valve is closed through the PLC, the first air inlet valve is opened through the PLC, and the temperature in the greenhouse is controlled to be too high, so that the temperature in the greenhouse is controlled to be too high, and the temperature in the greenhouse is controlled to be too high. By means of the structure, the draught fan can convey outside air into the heat exchange box for heat exchange and cooling, then the outside air can be evenly conveyed into the greenhouse through