This strain is a mouse Mapt gene humanized model carrying P301S mutation and can be used for research on FTD and AD. The homozygous B6-htau*P301S mice are viable and fertile. In addition, based on the independently developed TurboKnockout fusion BAC recombination technology, Cyagen can also generate other hot mutation models (e.g., B6-htau*P301L mice) and provide customized services for specific mutations.