Provided according to an embodiment is a liquid lens module including a first housing comprising a first hole formed therein to allow a first lens unit to be coupled thereto; a lower connection substrate coupled to the first housing; an upper connection substrate disposed on the lower connection substrate, the upper connection substrate being coupled to the first housing; and a liquid lens disposed between the lower connection substrate and the upper connection substrate, the liquid lens being configured to be electrically connected to the lower connection substrate and to the upper connection substrate, wherein the upper connection substrate comprises an opening that is larger than the liquid lens, and wherein the opening is disposed at a position corresponding to the first hole in an optical-axis direction.