A head chip comprising: an actuator plate in which a plurality of jet channels extending in a first direction (Y) is arranged in a second direction (X) crossing the first direction; a jet hole plate which has a plurality of jet holes configured to jet liquid, and which is disposed so as to be opposed to a channel opening surface on which the jet channels open in the actuator plate; and an intermediate plate which has communication holes configured to respectively communicate the jet channels and the jet holes with each other, and which is disposed between the actuator plate and the jet hole plate, wherein the communication holes each include a groove part which has a first opening part opening toward the jet hole , and which is recessed toward a direction getting away from the jet hole plate, and a penetrating part which has a second opening part opening toward the jet channel , and which is communicated with the groove part in an area including at least the groove part to thereby penetrate the intermediate plate, and a dimension in the second direction (X) in the first opening part is larger than a dimension in the second direction (X) in the second opening part , characterized in that a dimension in the second direction (X) in the second opening part is no larger than a dimension in the second direction (X) of a channel opening part opening on the channel opening surface in the jet channel, and defining a direction crossing the second direction (X) when viewed from a thickness direction (Z) of the intermediate plate as a third direction (Y), a dimension in the third direction in the penetrating part is smaller than a dimension in the third direction in the channel opening part . an actuator plate in which a plurality of jet channels extending in a first direction (Y) is arranged in a second direction (X) crossing the first direction; a jet hole plate which has a plurality of jet holes configured to jet liquid, and which is disposed so as to be opposed to a channel opening surface on which the jet channels open in the actuator plate; and an intermediate plate which has communication holes configured to respectively communicate the jet channels and the jet holes with each other, and which is disposed between the actuator plate and the jet hole plate, wherein the communication holes each include a groove part which has a first opening part opening toward the jet hole , and which is recessed toward a direction getting away from the jet hole plate, and a penetrating part which has a second opening part opening toward the jet channel , and which is communicated with the groove part in an area including at least the groove part to thereby penetrate the intermediate plate, and a groove part which has a first opening part opening toward the jet hole , and which is recessed toward a direction getting away from the jet hole plate, and a penetrating part which has a second opening part opening toward the jet channel , and which is communicated with the groove part in an area including at least the groove part to thereby penetrate the intermediate plate, and a dimension in the second direction (X) in the first opening part is larger than a dimension in the second direction (X) in the second opening part , characterized in that a dimension in the second direction (X) in the second opening part is no larger than a dimension in the second direction (X) of a channel opening part opening on the channel opening surface in the jet channel, and defining a direction crossing the second direction (X) when viewed from a thickness direction (Z) of the intermediate plate as a third direction (Y), a dimension in the third direction in the penetrating part is smaller than a dimension in the third direction in the channel opening part . <EOS>