The brush is one of the traditional painting tools in China, which has unique charm and expressive force, and is very suitable for the creation of environmental protection comic books. In order to achieve the expected effect, it is necessary to control the strokes, ink color and moisture of the brush when using the brush to protect the environment. The composition and proportion of environmental protection comic books are the key factors to express the theme. When drawing environmental protection comics, we need to pay attention to the proportion and balance of picture composition in order to convey the theme.