The 2021 campus cheerleading flower ball demonstration routine has a total of five sections.

1. The first section is the preparation section, which is used for the team to line up neatly and take ready postures.

2. The second paragraph is the first-level routine of the required flower ball movements, showing the first-level difficulty combination of flower ball movements.

3. The third section is the second-level routine of the required flower ball movements, showing the combination of the second-level difficulty of the flower ball movements.

4. The fourth section is the three-level routine of flower ball prescribed actions, showing the combination of three-level difficult flower ball movements.

5. The fifth paragraph is the ending paragraph, which is used to organize the formation and make closing movements, marking the end of the performance.