A seed preservation pipe capable of visually observing the dryness of seeds comprises a pipe (1) made of a high-temperature-resistant transparent material and a cover (2) screwed and covered at the opening of the pipe. And a transparent inner cup (3) which is provided with meshes and can contain a color-changing drying agent (4) is arranged at the upper part in the pipe. Tobacco seeds can be stored conveniently, the dryness of each seed can be observed easily, a drying agent can be replaced easily, and time and labor are saved.