Eichhornia crassipes based biomass composite packaging material was produced through refining, compression molding, and drying processes. The fiber properties of eichhornia crassipes were analyzed and the biomass composite packaging material was produced by adding adhesive. The experimental result showed that the strength of the biomass material added adhesive is higher than the non-adhesive biomass material; the biomass composite packaging material produced by eichhornia crassipes and precision molding technique has broad application prospects in food packaging, packaging of agriculture or forestry, and the transport packaging materials.