A noise reduction device for a vehicle, comprising: an outer pipe forming an external appearance; a turbo charger connection pipe into which a turbo charger for supercharging air is inserted therein, the turbo charger connection pipe being coupled to the outer pipe in a state where an outer surface thereof is in contact with an inner surface of the outer pipe, the turbo charger connection pipe extending into the outer pipe; an inner pipe located inside the outer pipe and integrally fabricated with the turbo charger connection pipe; and a baffle configured to partition a resonance chamber formed between the outer pipe and the inner pipe into a plurality of chambers, wherein among the resonance chambers partitioned by the baffle, a resonance chamber adjacent to an air inlet has an extended space formed between the turbo charger connection pipe and the outer pipe and a basic space formed between the inner pipe and the outer pipe, characterized in that, the baffle includes a first baffle and a second baffle installed along a direction from the air inlet toward an outlet, and wherein the resonance chamber includes: a first resonance chamber having the extended space and the basic space and communicating with a first slit formed at one side of the inner pipe; a second resonance chamber communicating with a second slit formed at the other side of the inner pipe and having a space partitioned from the first resonance chamber by the first baffle; and a third resonance chamber communicating with a gap, which is formed between an end of the inner pipe and the outer pipe and serves as an air passage, and having a space partitioned from the second resonance chamber by the second baffle. an outer pipe forming an external appearance; a turbo charger connection pipe into which a turbo charger for supercharging air is inserted therein, the turbo charger connection pipe being coupled to the outer pipe in a state where an outer surface thereof is in contact with an inner surface of the outer pipe, the turbo charger connection pipe extending into the outer pipe; an inner pipe located inside the outer pipe and integrally fabricated with the turbo charger connection pipe; and a baffle configured to partition a resonance chamber formed between the outer pipe and the inner pipe into a plurality of chambers, wherein among the resonance chambers partitioned by the baffle, a resonance chamber adjacent to an air inlet has an extended space formed between the turbo charger connection pipe and the outer pipe and a basic space formed between the inner pipe and the outer pipe, characterized in that, the baffle includes a first baffle and a second baffle installed along a direction from the air inlet toward an outlet, and wherein the resonance chamber includes: a first resonance chamber having the extended space and the basic space and communicating with a first slit formed at one side of the inner pipe; a second resonance chamber communicating with a second slit formed at the other side of the inner pipe and having a space partitioned from the first resonance chamber by the first baffle; and a third resonance chamber communicating with a gap, which is formed between an end of the inner pipe and the outer pipe and serves as an air passage, and having a space partitioned from the second resonance chamber by the second baffle.