The 26-year-old is charged with hitting Adewale Sapara, 25, with the item at Queen Street on October 11, last year. It is alleged the men "conducted themselves in a disorderly manner" and hit each other with a belt, breaching the peace.
Cairney, from Livingston, appeared in the dock at Glasgow Sheriff Court yesterday, where he was represented by Peter Malone.
The Hibs midfielder, who previously played for Partick Thistle and Queen's Park, denies the charge and will stand trial next month.
There is a warrant out for his co-accused Sapara, from Glasgow's West End, who was not at court when the case called.