The invention belongs to the technical field of pesticide, and particularly relates to a pesticide composition containing bacillus thuringiensis and celastrus angulatus. The pesticide composition containing bacillus thuringiensis and celastrus angulatus has the active ingredients of bacillus thuringiensis and celastrus angulatus according to the mass ratio of (1:5)-(5:1). The insecticidal active ingredients are the bacillus thuringiensis and the celastrus angulatus; the action mechanisms of the two active ingredients on insect pests are different; after the compounding, the two active ingredients have certain supplementary effect and synergistic effect; the prevention effect is obviously higher than that of the single dosage; meanwhile, the pesticide application quantity is reduced; the pesticide use load and the environment pollution are reduced. The pesticide composition has the special effects on cabbage caterpillars and diamond back moths; the insect pests cannot easily generate resistance.