The invention discloses a cooking spraying high-sanshoamide extract and a preparation method thereof. The extract comprises, by weight, zanthoxylum oil resin numb elements, 10-50 parts of zanthoxylumaromatic oil, 0.1-10 parts of glyceryl caprylate-caprate, 10-50 parts of ethyl alcohol, 2-20 parts of propanediol, 3-50 parts of emulsifying agents, 1-50 parts of plant oil, 0.1-1 part of antioxidants. The raw materials are dissolved each other to form mixed solution, a simple food-grade spraying tank is filled with the mixed solution, and the mixed solution is sprayed into a mist shape and addedinto food. The extract is suitable for use of dining and cooling, seasoning cost of dining can be reduced by 10-100mg/g of high-sanshoamide extract, the extract is matched with a simple spraying device, sprayed into mist shape and added into the food, the extract is more uniformly dispersed, absorption and seasoning are more facilitated, innovation of special numb food is increased, income of zanthoxylum farmers is improved, waste of social resources can be decreased, and environment-friendly pressure is reduced.