A red-
vinasse-
flavor broad bean and a preparing method thereof are disclosed. The red-
vinasse-
flavor broad bean is prepared from following raw materials by weight: 300-350 parts of broad bean, 12-15 parts of red 
vinasse, 20-22 parts of a sweet sauce made of fermented flour, 6-8 parts of beetroot 
powder, 5-8 parts of garlic preserved in laba vinegar, 15-20 parts of preserved mustard, 4-6 parts of ossein 
protein, 8-10 parts of a fermented bean curd solution, 1-2 parts of cortex acanthopanacis, 1-3 parts of sinochasea trigyna, 1-2 parts of 
forestry greenstar root, 1-2 parts of perilla leaf, 20-40 parts of pig bone, 20-25 parts of sweet 
osmanthus sugar, 8-10 parts of 
olive oil and 6-8 parts of a 
nutrition additive. The red-vinasse-
flavor broad bean has layered taste, wherein an outer layer contains the sweet 
osmanthus sugar, the sweet sauce made of fermented flour, and other 
nutrition compounds, has fresh and elegant sweet 
osmanthus fragrance, and is sweet and chewy; and the inner layer adopts the red vinasse, the preserved mustard, and other raw materials to preserve the broad bean so as to improve taste, and is mellow, fragrant, crisp, refreshing, capable of promoting 
digestion, unique in flavor and rich in 
nutrition. The added 
traditional Chinese medicine components improve healthcare value, tonify 
liver and kidney and are beneficial to 
human body health.