Formula: Eucommia ulmoides Oliv.15g; 2 pork loins; Cooking wine10g; 5 grams of ginger; Onion10g; 3 grams of salt; 3 grams of chicken essence; 25 grams of chicken oil; 3 grams of pepper; Efficacy: tonify liver and kidney, strengthen bones and muscles. It is suitable for kidney deficiency, lumbago, soreness of waist and knees, threatened abortion, hypertension and other diseases. Output: 1. Completely moisten Eucommia ulmoides Oliv. , cut into 4cm long filaments, stir-fry with salt water, and decoct with150ml water for 20min, and take 50ml liquid medicine for later use; All two halves of pig kidney, removing white urine glands and cutting into kidney flowers; Slice ginger and shred onion. 2. Put Eucommia ulmoides medicinal liquid, pig kidney flower, cooking wine, ginger and onion into a stew pot, add water 1500 ml, boil with strong fire, and simmer for 25min.