The present invention relates to a wet processing chamber for wet processing an object to be processed. Provided are a wet processing chamber and an apparatus for wet processing comprising same, the wet processing chamber comprising: a housing provided with one or more openings so as to allow an object to be processed to pass through; and a blocking part arranged so as to correspond to the opening and provided with a slit to allow the object to be processed to pass through, wherein the blocking part is bigger in size than the opening, and the slit in the blocking part has a narrower width than the opening.