The invention provides a solar photovoltaic greenhouse detection control system and a control method thereof. The solar photovoltaic greenhouse detection control system comprises a sensor subsystem, a servo subsystem, a data acquisition subsystem and an information processing subsystem. The information processing subsystem carries out comparison analysis on data collected from the sensor subsystem and transmitted by the data acquisition subsystem and a preset value, and sends a control signal to the servo subsystem according to the analysis result, wherein the control signal comprises regulating variables for adjusting temperature, humidity, illuminance and concentrations of carbon dioxide; a first integrated multi-way switch is used for sending the data detected by the sensor subsystem to a data collection card; and a second integrated multi-way switch is used for transmitting the control signal transmitted by the data collection card to the servo subsystem. The solar photovoltaic greenhouse detection control system can collect and adjust environment parameters in a solar photovoltaic greenhouse conveniently, and thus crop plantation benefits in the solar photovoltaic greenhouse is greatly improved.