The present disclosure relates to the field of information technologies and discloses a method and an apparatus for implementing virtual machine introspection. The method provided in the present disclosure may further include: determining to-be-checked data in a virtual machine; starting to read the to-be-checked data, saving a copy of the read to-be-checked data, and storing a storage address of the read to-be-checked data in a hardware transactional memory, so that the hardware transactional memory is capable of monitoring the read to-be-checked data according to the storage address; when the read to-be-checked data is modified, stop reading the to-be-checked data, and delete the copy; and when reading the to-be-checked data is completed and it is not detected that the read to-be-checked data is modified, performing security check on the copy. The method can be applied to virtual machine introspection.