The utility model discloses a volatile gaseous of plant gathers check out test set, wherein: including installing gaseous collection system who locates at the air outlet window who breeds the house and the gaseous detection device who is connected with gaseous collection system, air outlet window is including setting up the window frame on the opening in a wall and install the window that can inwards open on the window frame, gaseous collection system includes the collection net, the collection net covers the opening in a wall completely and the periphery is fixed on the window frame, the collection net is woven by a plurality of longitudinal tubule (L tubule)s and a plurality of transverse conductive silks and is formed, a plurality of induction port has been offered towards a side of breeding she shenei to every longitudinal tubule (L tubule), the one end of each longitudinal tubule (L tubule) all is connected to a gaseous pipe of gathering, the gaseous union coupling negative pressure generator of gathering, gaseous detection device is connected to the negative pressure generator, a DC power supply who is equipped with boost circuit is connected to the transverse conductive silk, adjacently lead clearance fit between the electric wire, and the adjacent electric wire of leading connects DC power supply's positive negative pole crisscrossly.