Plant transpiration measuring device

The invention discloses a plant transpiration measuring device. The device comprises an observation room, a condensation system, a water collection measuring component and an exhaust component, wherein the observation room is of a container structure that one end of the observation room is provided with an inlet, while the other end thereof is provided with an outlet; the outlet of the observation room is communicated with one end of a cooling tube of the condensation system; the other end of the cooling tube is communicated with the water collection measuring component; the cooling tube is communicated with the exhaust component; and the bottom of the water collection measuring component is provided with a gravity measuring component. The measuring device not only has the advantages of simple structure, easy manufacturing, convenient carrying, low price and convenient operation and use, but also has excellent measuring effect and can directly measure transpiration water consumption data of plant branches or