The invention discloses a braised chicken sauce and preparing method thereof. By quality percentage, the braised chicken sauce is prepared from 1% green onion, 1% ginger, 1% garlic, 1% green Chinese onion, 1% onion, 3% soybean oil, 3% chicken oil, 2.5% soybean paste, 2.5% thick broad-bean sauce, 1% peanut, 1% sesame, 45.15% water, 8% chicken skeleton, 3% yeast extract, 2% originally brewed rice wine, 5% white granulated sugar, 2% aginomoto, 0.1% I+G, 0.05% VC, 0.05% VE, 0.05% glycine, 0.05% L-alanine, 0.05% ethyl maltol, 0.1% disodium succinate, 1% hydrolyzed vegetable protein, 1% maltodextrin, 0.02% rosemary extract, 0.03% potassium sorbate, 9% salt, 0.05% black pepper particle, 0.05% anise, 0.05% cassia bark, 0.05% dahurian angelica root, 0.05% netmeg, 0.1% natural carotene, and 1% starch; the prepared braised chicken sauce in the invention is full of fresh fragrance, delicious, and widely applied in ordinary home and catering for making braised chicken and other poultry and animal dishes; it is economic and practical, and accessible to standardized production at the highest value of market promotion.