The Lowest Energy Principle is one of the most common rules in nature

which can be used to explaine many phenomena of polymer chemisty. In this paper

some concrete embodiment of the Lowest Energy Principle in polymer chemisty has been expatiated from polymerization direction

stability of free radials and rearrangement reaction of polymerization etc.

and the application of the lowest energy principle in explaining laws and phenomena of polymer chemisty reaction has been preliminary explorated. Practice has proved that explaining some concepts and reactions in polymer chemistry teaching by using the lowest energy principle can make things more easy.