The invention relates to the technical field of novel degradable materials, in particular to a biodegradable material containing bamboo powder, and a preparation method thereof. The biodegradable material comprises 15-30 parts of the bamboo powder, 2-6 parts of calcium carbonate and 40-65 parts of biodegradable resin, and coupling agents, biodegradable enzymes, phase solvents, photoinitiators, plasticizers, chain extenders, lubricants, active agents and the like are added to prepare the biodegradable material. The biodegradable material and the preparation method thereof have the advantages that the biodegradable material is made from the bamboo powder, the biodegradable resin, the coupling agents, the biodegradable enzymes, the plasticizers and the like, and the photoinitiators and auxiliary agents are added, so that the biodegradable material can have better mechanical properties and higher degradation rate than other existing plastic materials under the action of different factors in the natural environment; the biodegradable material is easy to prepare, wide in application range, sanitary and environmentally friendly.