Abstract: A security assessment apparatus and method for a processor are disclosed, and relate to the field of electronic technologies, to improve security during running of the processor. The security assessment apparatus includes: a processor (101), configured to run instructions in a memory (105); an access controller (103), configured to control a processor tracker (102) to access a first storage area in the memory (105), where the processor (101) is prohibited from accessing the first storage area; the processor tracker (102), configured to obtain first address information of a first instruction in the instructions in the memory (105), and store the first address information in the first storage area; and a security protection system (104), configured to obtain the first address information from the first storage area, and assess security of the first instruction based on the first address information.