Generally speaking, there is no strict regulation on PPT time for the defense of outstanding youth funds, and different schools or institutions may be different. Generally speaking, the PPT time of defense depends on the specific situation, and it is generally recommended to control it at around 10- 15 minutes. During this period, it should include the introduction of research background, research purpose, research methods, research results and conclusions. In addition, time should be set aside for the defense Committee to ask questions and discuss. For specific time requirements, I suggest you consult your tutor or relevant person in charge in advance.