Thousands of years ago, the flag was first used for military purposes on land and then as an identification signal at sea; Then it evolved to represent the royal family, the state and other government strata, enterprises, military ranks and units, sports teams and political parties.

To successfully design a perfect flag, the following five principles can be followed to achieve the goal:

1. simplicity: the flag must be so simple that people can draw it through their own memory

2. use meaningful symbols: the colors and patterns of flags should have symbolic meanings

3. use 2 to 3 basic colors: the flag color is limited to 3. The contrast effect is very good, and the standard color setting should be used.

4. no words and seals: do not use any type of writing or the seal of the organization

5. distinctive or related: avoid copying other flags, but use similarities to show their connection. This may be the most difficult principle, but it is very important.

To design a good flag, we should first start with the design purpose and concept of the flag, and then closely match the two forms through the matching of color and shape to show people the concept of tradition, unity and image of the flag. Through the flag, the viewer can be refreshing and attracted by the flag.