The invention discloses environment-friendly biomass fuel. The environment-friendly biomass fuel is prepared from the following raw materials in parts by weight: 51-65 parts of cotton stalk, 41-48 parts of sugarcane stalk, 10-16 parts of sunflower stalk powder, 10-19 parts of broad bean stalk powder, 8-16 parts of pear branches, 13-20 parts of apple tree sawdust, 3-10 parts of plum sawdust, 17-24parts of rice hull powder, 8-13 parts of pulverized coal, 3-9 parts of plant ash, 2-6 parts of diatomite, 3-6 parts of methyl alcohol, 0.1-0.6 part of calcium peroxide, 0.8-1.3 parts of n-pentane, 0.3-0.8 part of zinc oxide, 0.1-0.5 part of di-tert-utylhydroquinone and 1-5 parts of catalyst. Compared with traditional fuel, the environment-friendly biomass fuel not only has economic benefits, but also has environment-friendly benefits, and the requirements of sustainable development are completely met. Firstly, due to the fact that the environment-friendly biomass fuel is in a particle shape, the volume is compressed, a storage space is saved, and transportation is convenient, so that the transportation cost is reduced; compared with coal, the environment-friendly biomass fuel has the advantages that the volatile matter content is high, and an ignition point is low, so that the environment-friendly biomass fuel is easy to light; the density is improved, the energy density is high, combustion duration time is greatly prolonged, and the environment-friendly biomass fuel can be applied on a coal-fired boiler directly.