The invention discloses a developing device and photoetching equipment. The developing device comprises developing chambers, wherein the developing chambers are used for accommodating to-be-developed substrates; the developing device further comprises a heating mechanism; the heating mechanism comprises a plurality of heating pieces, and the plurality of heating pieces are arranged in the developing chambers, are used for heating different developing positions of the substrates, located above or below the heating mechanism, in the developing chambers and can independently control heating respectively.