Disclosed is an absorbing heat pump which enables the flux of the heated liquid to generate little deviation and inhibits the decrease of the effective area of the heat conveying tube. A heat absorbing pump (100A) possesses an absorber (A1) which heats the heated liquid (103) to generate heated liquid gas. The absorber (A1) possesses the following: a heat conveying pipe group (12) composed of a plurality of heat conveying tubes which are horizontally arranged, wherein the outside is distributed with absorbing liquid, and the inner side is provided with the heated liquid; and a heated liquid chamber (121) which supplies the heated liquid to the heated liquid supply side of the heat conveying pipe group (12). The heated liquid chamber (121) possesses a separating member (122), wherein the heat conveying pipe group (12) is divided to uniform numbers of divided heat conveying pipe group (12a, 12b) up and down, and supply openings (131a-1, 131b-1), which uniformly supplies the heated liquid.