The highway greening spraying grass seed hydroseeder has gradually replaced the dry spraying machine and the concrete pump in the construction, to a certain extent, it has solved the low efficiency of the dry spraying machine, the high construction cost, the labor, and the high cost of the wet spraying machine. After repeated research and improvement, continuous comparison and improvement. Now highway greening spraying grass seed hydroseeder can be used for spraying on soilless surfaces such as rock, sand, or organic soil surfaces.