The invention relates to the technical field of cultivation substrate treatment, in particular to a substrate treatment device for coastal salt-tolerant
tree species cultivation, which comprises a mixed production structure and a
secondary treatment structure, and the side end of the mixed production structure is communicated with the
secondary treatment structure. Through the arrangement of the mixing production structure, material guiding and water spraying work is carried out, different materials can be guided into a first material guiding
pipe, a second material guiding
pipe and a third material guiding
pipe in the material mixing mechanism so as to be mixed in a storage seat sleeve, efficient mixing is carried out through a driving rod and a mixing treatment disc, heating treatment is carried out through a heating seat, and therefore the
machining purpose is achieved; after specified time, an
electromagnetic valve is opened, a material body can be guided into a storage box through a conical guide seat, a water conveying pipe and a spraying pipe are guided into a
water body, the
water body can be sprayed on the storage box, and meanwhile, a conveying belt drives the storage box to move, so that boxing work is carried out, and the cultivation matrix can be automatically guided in and conveyed; and the purpose of automatic production is achieved.