In 2030, public vehicles and buses will be fully electrification. It is a great opportunity for the development of heavy-duty vehicle related industries in Taiwan. However, most of the key components of these vehicles rely on imports, and it results in an issue that the value of automotive industries could not be increased. This article studies the R&D progress and necessity of vehicles electrification in the world. According to the policy requirements breakthrough of heavy-duty vehicle industries is discussed and presented. The transmission technology requirements for the heavy-duty vehicle are also analyzed. Finally, some practical examples of our works in industry promotion and our R&D capability are introduced.