The utility model discloses an intense light source support that plant stress physiology was used, including chassis, bolt hole, connection branch, base, runner, stand, down tube, fastening nut, lightsource cover, light source plate and mounting hole. The chassis of this intense light source support is equipped with the protruding pad of rubber with the contacting area on ground, through the protruding pad of rubber, can increase the frictional force of chassis and ground interfacial, the chassis is passed the bolt hole through the bolt and is connected the installation with the lateral wallof plant cabinet body for the stress physiology, can make support and plant stress physiology the for the cabinet body coupling be in the same place, and space is saved, the runner can carry out 360 rotations on the base, be convenient for adjust intense light source's direction of illumination, make the convenient operation of the experimenter, the removal of fastening nut's elasticity control down tube is with fixed, can adjust the flexible length of down tube, the plant of the tackling co -altitude not cabinet body for the stress physiology, light source cover's inside scribbles the heat -sink shell, absorb the heat that intense light source produced, prevent to bring indefinite influence factor for the experiment.