In order to solve the problem that the present integrity measurement scheme of TCG did not reflect runtime behaviors accurately, a noninterference integrity measurement model based on actions of system processes was proposed. By using the basic idea of noninterference theory as reference, the process operation integrity and the interprocess integrity transmission were analyzed, hence the runtime integrity of system can be measured from the dynamic point of view. Formal description and analysis showed that the model is intuitionistic, well understandable and can be realized by any method which meets the requirements of the model.
