The invention relates to a soil conditioner applicable to vegetable cultivation. The soil conditioner comprises, by weight, 7-10 parts of spiral seaweeds, 28-33 parts of crop straws, 20-27 parts of bean dregs, 20-25 parts of coal gangue, 13-19 parts of earthworm powder, 35-42 parts of rice hull powder, 51-58 parts of diatomite, 40-49 parts of urea, 7-11 parts of magnesium sulfate, 0.3-0.5 part ofzinc sulfate, 1-2 parts of potassium humate, 4-9 parts of ardealite, 1-3 parts of bacillus, 2-3.5 parts of pisolithus tinctorius and 96-126 parts of water. According to the soil conditioner applicableto vegetable cultivation, resource utilization rate and soil fertility are effectively increased, soil can be improved, crop yield and quality are effectively improved, gas permeability of the soil is effectively improved, the disease resistance of crops is enhanced, the survival rate of planted trees and agricultural output are greatly increased, and agriculture and forestry product quality is improved.