Pelletized seeds for alpine desert region and preparation method thereof

The invention provides pelletized seeds for alpine desert regions and a preparation method of the pelletized seeds. The pelletized seed comprises an original seed and a mixed wrapping material wrapping the seed, the mixed wrapping material comprises soil, organic matter, organic fertilizer, rooting powder and a water absorption swelling agent; the volume of the pelletized seeds is 30-100 times of that of the original seeds; the wrapping thickness of the mixed wrapping material on the original seeds is greater than or equal to 0.6 cm. According to the pelletized seeds for the alpine desert region, sufficient water and nutrient substance supply can be provided for the seeds in the germination process, seed germination and seedling development can be promoted, development and growth of root systems can be promoted, and the adaptive capacity of the seeds to adverse environments during germination can also be promoted. And the volume of the pelletized seeds is prepared to be 30-100 times of the volume of the origi