Stable isotope spraying incubator and use method thereof

The invention relates to a stable isotope spraying incubator and a using method thereof, which are used for conveniently applying the isotopes while achieving the culture of terrestrial plants. A supporting plate is arranged in a box body, a clamping hole for clamping terrestrial plants is arranged on the supporting plate, a spraying unit is arranged on a box cover, the spraying unit comprises anelastic soft bottle, a liquid adding port arranged on the upper part of the soft bottle, a one-way valve arranged in the liquid adding port, a liquid outlet arranged at the lower part of the soft bottle and detachably connected with the box cover, a long pipe connected with the liquid outlet and arranged in the box body, and a spray head arranged at the bottom of the long pipe, wherein the valve is arranged on the liquid outlet above the box cover; a culture solution barrel is fixed on the outer wall of the box body, a connecting pipe is arranged at the bottom of the culture solution barrel, awater inlet pipe connecte