The joint study of bachelor's degree and doctoral degree contains a lot of gold. In colleges and universities, the joint study of bachelor's and doctoral degrees is called "consistent training", that is, once students enter this training system, they will study according to the training method of graduate students. Under this training mode, many colleges and universities merged the senior year and the first graduate student, canceled the third graduate student, and shortened the joint study period of bachelor's degree and doctoral degree to 8 years. This training mode has brought many benefits to students. Students studying for bachelor's and doctoral degrees save a lot of time in preparing for postgraduate entrance examination and thesis, so they can devote more time and energy to research and improve their research level. The joint learning and training mode of bachelor's degree and doctor's degree provides students with more research experience and enables them to have a deeper understanding and practice in the research field. This training mode has high gold content, which provides students with more academic resources and opportunities, so that they can grow and produce results faster in the research field. The joint learning and training mode of bachelor's degree and doctoral degree has high academic value and gold content.