Canal Street’s notorious knock-off vendors are up to their old tricks.

At least four people were busted and approximately half a million dollars in fake merchandise seized Wednesday afternoon by NYC Sheriff’s Officers during a series of raids on Chinatown counterfeiters, The Post has learned.

Videos and photos show about 20 Big Apple sheriff’s officers scouring shops and standing among overflowing bags of imitation Gucci hats, fake Louis Vuitton bags and belts and other faux luxury goods.

The blitz on the bogus goods began at around 3 p.m. at three addresses on Canal Street and at sellers along Canal Street and Lispenard Street between Broadway and Church Street, a law enforcement source said.

Officers seized a “significant” amount of counterfeit goods with a retail value of $500,000 or more, the source said.

The four people arrested were charged with misdemeanors related to the possession of counterfeit trademarked goods. Their names weren’t immediately released.