The dissertation introduces the structure and theory of feeding device ; compressing chamber and packing mechanism . the author makes economic analysis and benefit perspective of the packer on the expense of transportation and storage 本文介绍了木片压缩打包机的进料装置、压缩室结构和打包机构等各部分的结构及原理;并从压缩费用和运输费用方面对木片压缩打包机做了经济分析及效益展望。