Sanjiang town integrates shallow hills, flat dams and high mountains, gives full play to natural resources such as "mountains, tombs and dams", vigorously develops agriculture, forestry, animal husbandry and by-products, initially forms characteristic agriculture with ecological agriculture as the main body, vigorously develops eco-tourism industry, and taps and integrates the rich natural, ecological and cultural tourism resources and potentials of the Three Rivers. Guide farmers into the river to engage in cage fish culture and fishing, with a daily output of 2 tons of fresh fish; Establishing sericulture production base and planting mulberry and raising silkworms in households have become a shortcut for farmers to get rich quickly; Cultivate and develop the high-quality pig production demonstration base in Mingyuesi Village, and strive to raise pigs per capita 1.5; A cucumber production base with an area of 1 1,000 mu has been built, and gradually radiated to the whole town and surrounding towns. Rich cucumber is crisp and tender, sweet in juice, with special fragrance, containing 98% water, and a small amount of essential nutrients such as vitamin C, carotene, protein, calcium, phosphorus and iron. It is a good product for weight loss and beauty.