Protesters furious with the MTA’s decision to beef up police surveillance on subway lines scuffled with cops Wednesday — and ended up getting ejected from the agency’s meeting, officials said.

Four protesters were handcuffed and cited as the MTA board voted for the new budget, which allocates funds for 500 new officers, according to MTA spokesperson Tim Minton.

“Don’t do this! Stop brutalizing our black and brown neighbors!” the group had been shouting.

Police nabbed the first two protesters — a man and woman — when they “stood up and started screaming,” Minton said.

Then, another man tried to approach the area where the board sits and was yanked by police, officials said.

He was ejected along with a third male demonstrator who then charged at the board and was “immediately surrounded and detained by police,” Minton said.

The man was pulled out of the room before he was slammed against the wall in an episode caught on video. He was cuffed along with a female companion, who was kicked out with him.

The other ejected protesters included a 15-year-old boy who had also tried to interfere with cops detaining a demonstrator, officials said. He didn’t receive a summons for the incident.

Five of the protesters were hit with summonses for disorderly conduct, while the two others were only booted from the meeting, the agency said.