Drawing a poster for the Dragon Boat Festival can be done through the following steps:

Prepare materials for the poster: large sheets of colored paper, colored pens, scissors, glue, etc.

On the top of the poster, write the words "Dragon Boat Festival" in bright colors. You can choose traditional festive colors such as red or green.

Draw a Dragon Boat Festival theme pattern in the upper left or upper right corner of the poster. You can draw a colorful flying dragon to represent the scene of the dragon boat race; or you can draw an exquisite pattern of making rice dumplings to represent the traditional custom of making rice dumplings. Try to use bright colors and vivid lines to make the pattern more attractive.

In the middle area of ??the poster, you can introduce the origin and traditional customs of the Dragon Boat Festival. Use different colors and fonts to highlight key parts, such as the origin of the Dragon Boat Festival, dragon boat racing, making rice dumplings, Sabicao, etc., as well as stories and legends related to the Dragon Boat Festival.

At the bottom of the poster, you can display the special delicacies of the Dragon Boat Festival, such as rice dumplings, mugwort, realgar wine, etc. Use colored pens or paper-cutting techniques to draw the shapes of food to add interest.

Around the poster, you can add some small illustrations related to the Dragon Boat Festival, such as dragon boats, mugwort, drums, etc. These small illustrations can increase the visual effect of the entire poster, making it more lively and interesting.

Finally, carefully check the content and layout of the poster to ensure that the text is clear and the graphics are beautiful. Adjustments and corrections can be made as needed.

By following the above steps, you can draw an artboard newspaper rich in Dragon Boat Festival elements. Display the traditional culture and customs of the Dragon Boat Festival on the poster so that people can better understand and value this traditional Chinese festival. Remember to create with your heart and show your understanding and love for the Dragon Boat Festival.