The utility model discloses a bamboo composite large container baseboard with low cost capable of meeting each technical and performance index of a baseboard of a container. The utility model is characterized in that the bamboo composite large container baseboard comprising a panel, a bottom board and a core board is formed by hot compacting through pasting glue and preservative. The panel and the bottom board are bamboo mats [2] which are formed by knitting bamboo splints. The core board is a bamboo screen [3] formed by knitting bamboo splints, or the core board is formed by gluing an accumulating layer and a woody veneer [4] or by gluing extended staggered accumulating layers. The utility model is detected, the products completely conforms to the standards of ISO1496-1, and simultaneously the utilization ratio of bamboos increases by 25% because of the adoption of cutting bamboo to get bamboo splints at a radial direction. The problems of big thickness tolerance because of big bamboo head and small bamboo tail and poor veneering quality because of green bamboo and yellow bamboo face, when the method of cutting bamboo to get bamboo splints at a chord direction is adopted, can be solved. The bamboo composite large container baseboard reduces cost for manufacturers, improves quality, saves resource and protects environment for nation.