The application for joining the party is only your intention to join the party. Some people will write several applications for joining the party and explain several strong demands for joining the party. Because the application for joining the party cannot be printed, it must be handwritten, and there are not many requirements in the format. Some people's applications for joining the party can be signed at the beginning or not. As long as you can express a strong desire to join the party. Finally, when you really join the party, try to fill in the application for joining the party on the printed form.