A vacuum suction nozzle is provided, including a first housing, a second housing, an accommodating space, a gap, and a clamping assembly. The first housing includes a first lateral wall, a first lower surface, a channel, and a through hole. The through hole is formed on the first lateral wall. The second housing is fixedly connected to the first housing, and includes a second lateral wall and a second lower surface. The accommodating space is formed between the first lateral wall and the second lateral wall, and the through hole is opened onto the channel and the accommodating space. The gap is formed between the first lower surface and the second lower surface, and is opened onto the accommodating space. The clamping assembly is disposed in the accommodating space.