Frozen tissue embedding medium reagent bottle capable of preventing bubbles

The utility model discloses a frozen tissue embedding medium reagent bottle capable of preventing bubbles. The frozen tissue embedding medium reagent bottle comprises a reagent bottle, an inner tube and an outer tube, the inner tube is vertically arranged inside the reagent bottle, the outer tube is arranged outside the reagent bottle and is communicated with the inner tube, and liquid in the reagent bottle flows out of the outer tube through the bottom of the inner tube. A first one-way valve is arranged at the top of the reagent bottle, and external air can enter the reagent bottle through the first one-way valve; a second one-way valve is arranged in the outer pipe, and the second one-way valve enables liquid to only flow towards the end opening of the outer pipe so as to prevent the outer pipe from sucking back to generate air. According to the utility model, bubbles caused by suck-back of air can be effectively avoided, so that the phenomena of wrinkles, cavities and cracks on tissue slices when a techni