Abstract:The paper tries to construct a standard research model for the growth of small and mediumsized technological enterprises under the angle of bionics. Using ecology theory to explain exterior growth characteristics of small and mediumsized technological enterprises, and using life cycle theory to explain its internal growth characteristic, this article constructs a growth mechanism model for small and mediumsized technological enterprises based on systems dynamics theory and method. The model demonstrates that a consummate growth mechanism should include external environment system feedback loop, own functional system feedback loop and correlation feedback loop between subsystems. Intriguing overlapping feedback loops builds up a growth functional net of small and mediumsized technological enterprises.