The invention relates to pot soil for repotting succulent Euphorbia neriifolia. The pot soil comprises a subsoil layer, a nutrient soil layer and a surface soil layer which are sequentially covered from bottom to top and are in the thickness ratio being 1:(0.3-0.4):(0.2-0.3) in a pot, wherein the subsoil layer comprises, in parts by mass, 20-30 parts of peat, 10-15 parts of cedar sawdust, 10-20 parts of rape seed cakes, 5-8 parts of river sand, 5-10 parts of chitosan and 5-10 parts of bran; the nutrient soil layer comprises, in parts by mass, 30-35 parts of leaf mold, 8-12 parts of 45% three-element compound fertilizer, 5-10 parts of perlite, 5-8 parts of lignin fibers and 5-10 parts of a CO2 supercritical extraction solution of dandelions; the surface soil layer comprises, in parts by mass, 20-25 parts of mountain soil, 8-12 parts of vermiculite powder, 5-6 parts of argy wormwood leaf powder, 3-6 parts of ginger powder, 5-8 parts of urea, 5-8 parts of potassium chloride and 5-8 parts of calcium magnesium phosphate fertilizer.