CMP is the main stream of development of the current processor. Multi-core multi-threaded processor can effectively enhance the throughput of the processor. As an essential tool in the research process, processor simulator not only speeds up the development process for processor design, but also enable parallels processor design with software development In order to research multi-core multi-threaded processor and explore design space, we propose a multi-core multi-threaded simulator, which supports multiple driving modes and accuracy modes.