Provided is a reactor and carbonation equipment having the same, and the reactor includes: a plurality of chambers; a support structure for supporting the plurality of chambers; and a plurality of agitators disposed correspondingly to the plurality of chambers to agitate substances disposed in the plurality of chambers, wherein the plurality of chambers may include first to third chambers coupled sequentially to one another in a thickness direction of the reactor, each chamber including a body having a lower portion having the shape of a semi-cylinder and an opening formed on the body to communicate with the neighboring chamber or the outside, the first chamber having a first water introducing pipe for supplying water to the first body, the second chamber having a second water introducing pipe for supplying water to the second body and a first gas introducing pipe for supplying gas to the second body, and the third chamber having a second gas introducing pipe for supplying gas to the third body.