The paper discovers the forming law of biological cell,mosaic tetra decahedron, th rough the obser vation of its mosaic pat ter n,and generates the digital simulate architectural form through the digital techniques, and then further conducts construct stress analysis on another traditional architectural form formed by the mosaic between tetra decahedron and dodecahedron,and explicitly points out the advantages and disadvantages of bionical architectural form in the aspects of structure and actual construction through data analysis.