Excuse me, does anyone know the name of the military song that is often used to greet leaders?

Welcome March (also called welcome song) can be used as welcome song.

The March of China People's Liberation Army (i.e. military songs) is mainly used to greet military flags in major military gatherings and military parades.

The March of military parade is mainly used by the president when accompanying foreign leaders to review troops or military leaders to review troops.