Private scientific and technological enterprise is gradually becoming the most dynamic and market competitiveness of the innovation main body, enterprises only through continuous innovation can continue to expand development space, or will soon be competitors to imitate and surpass. In analyzing influence factors on the basis of continuous innovation, and points out that to establish the dynamic mechanism of continuous innovation is the precondition of private technology enterprises obtain lasting competitiveness and guarantee, and respectively discussed from two aspects of external motivation and intrinsic motivation factors work together on innovation main body to generate continuous innovation behavior mechanism.