The invention discloses a balance growth regulator for a plant. The balance growth regulator is characterized by comprising a filling agent and at least four crop growth regulators selected from brassinolide, methyl jasmonate, auxin (heteroauxin), salicylic acid, cytokinin, gibberellic acid, abscisic acid, ethylene and triacontanol. The product disclosed by the invention is a plant growth regulator prepared from at least more than four traditional endogenous plant growth regulators, the balance growth regulator not only can be used for greatly increasing the yield, but also can be used for additionally producing dry matters, shows favorable crop disease and disadvantage resistance and is green, safe and incapable of injuring eaters.