Gate is one of the building elements and has important function in the system of Chinese classical buildings. For one thing

the gate has turned from a building component into a single structure

and becomes the key part of space construction in the traditional courtyard buildings; for the another

the gate has not only practical and commemorative function

but also shows off the rigorous hierarchy

and becomes the symbol of the confucian feudal ethic. Through the analysis of their function

form and symbol

memorial meaning as well as the component relationship between gate and plan

gate and elevation

we can show up its profound connotation of social ethics and architectural aesthetics

and offer reference to architectural creation.