The invention discloses an economic and environment-friendly damping plate with high damping property. The economic and environment-friendly damping plate with high damping property is prepared from the following raw materials: a polyurethane elastomer, coal ash, mica, hydrogenated C5 petroleum resin, glass fiber, carbon black, an anti-aging agent and an antioxidant in a mass ratio of (200-250):(410-500):(400-475):(40-80):(4-10):(20-100):5:5. The economic and environment-friendly damping plate with high damping property has the advantages that materials are well chosen, waste coal ash is adopted as a functional damping filler, a waste material is changed into things of value, environment-friendly polyurethane is adopted for replacing harmful asphalt, energy conservation, emission reduction and ecological environmental protection are realized, production cost is low, period is short, a production technology is scientific, the economic and environment-friendly damping plate with high damping property is convenient to manufacture, and the product has good damping and soundproof effects, high damping coefficient, strong aging resistance, long service life and wide applicability and is beneficial to large-scale industrial production.