A compound traditional Chinese medicine liquid foliar fertilizer and its preparation method, using the Chinese herbal medicines Pinellia chinensis, Daji, Toad grass, Buttian sorrel, Datura, Toosendan, Artemisia annua, Langbacao, calamus, and ghost needles three or more formulations of Euphorbia chamaejasma, Artemisia chinensis, Dandelion, Artemisia caperifera, Daphne chamaejasme, Euphorbia chamaejasma, Artemisia scoparia, and Lyceum chamaejasma, as well as their acidic solvents, tributyl borate, selenous acid, Three or three of sodium selenite, methyl salicylate, sterilized crystalline sulfonamide, niflumic acid, ethyl acetate, sulindac, potassium dihydrogen phosphate, ammonium sulfate, mefenamic acid, and zinc sulfate The above formula is a compound Chinese herbal medicine foliar fertilizer produced by soaking, pulverizing, pulping, filtering and clarifying the mixed solution of hot water at 100°C. The invention is a plant source pesticide fertilizer, which is a composite liquid preparation of organic insecticidal and bactericidal toxic ingredients and acid nutrient element fertilizer.