1. Double employed academician is a kind of part-time academician. When an academician is employed by two or more units at the same time, his original work unit calls him "academician", while other institutions that employ him call him "double employed academician".
 2. "Double employed academicians" are the utilitarian products of academician titles, which often hide huge practical interests.
 3. Part time academician issues such as "specially appointed academicians", "double appointed academicians" and "shared academicians" have also been the focus of the academician conferences of the two academies for many times. The Chinese Academy of Engineering has also clearly stated in the Code of Scientific Ethics for Academicians of the Chinese Academy of Engineering that it does not accept the so-called "double appointed academicians" and other similar terms.
 The basic details of the double employed academicians in this article have been explained, and I hope it will be helpful to everyone.