A crazed vagrant repeatedly stabbed a fellow homeless man with a pair of scissors before shoving him onto the subway tracks at a Manhattan train station on Wednesday, police said.

The 47-year-old victim was standing on the uptown A platform at 59th St-Columbus Circle just after 5 a.m. when a fellow vagrant got into an argument with him, eventually sinking a pair of orange scissors into the man’s shoulder blade and tossing him down to the tracks, cops said.

Police arrested 24-year-old vagrant Sir Soprano on the corner of 58th St. and Columbus Circle around 5:30 a.m. He is being charged with reckless endangerment and assault in the second degree, police said.

The victim was taken to Weill Cornell Hospital in stable condition, according to cops.

It’s unknown if the men knew each other prior to the incident.