The invention discloses a dynamic measurement method based on a trusted computing platform with a double-system structure. The trusted computing platform comprises a computing subsystem and a protection subsystem which are parallel. The computing subsystem is used for completing a computing task, and the protection subsystem is used for carrying out active measurement and active control on the computing subsystem according to a trusted strategy through a trusted platform control module. The dynamic measurement method comprises the steps that in the operation process of a computing subsystem, when the triggering condition of dynamic measurement is met. A protection subsystem conducts dynamic measurement on the computing subsystem through a control layer in a credible software base accordingto a credible strategy and obtained related information executed by an application in the computing subsystem. The dynamic measurement method provided by the invention is based on a trusted computingplatform with a dual-system structure, and utilizes the dynamic measurement method to dynamically measure the related information executed by the application in the operation process of the computingsubsystem, so that the whole process of the computing subsystem is measurable and controllable, and the safety performance of the computing subsystem is improved.