A support body for a liquid ejecting head, the support body being adapted to support a first liquid ejecting unit and a second liquid ejecting unit in each of which a plurality of nozzles for ejecting liquid are formed on an ejecting face, the support body comprising: a first opening portion adapted to expose the ejecting face of the first liquid ejecting unit and a second opening portion adapted to expose the ejecting face of the second liquid ejecting unit, the first and second opening portions being formed along a first direction, a beam-shaped portion disposed between the first opening portion and the second opening portion, the beam-shaped portion including: a first support portion adapted to support the first liquid ejecting unit, and a second support portion adapted to support the second liquid ejecting unit, and at least one of projections adapted to engage with engagement holes (hA, hB) formed in each of the first and second liquid ejecting units, and engagement holes adapted to engage with projections formed in each of the first and second liquid ejecting units, wherein the first support portion extends in a second direction perpendicular to the first direction and extends from a first side of the first and second opening portions in the second direction, and the second support portion extends in the second direction and extends from a second side of the first and second opening portions in the second direction, the second side being opposite to the first side in the second direction, and characterized in that the first support portion and the second support portion are separated from each other in the first direction. a first opening portion adapted to expose the ejecting face of the first liquid ejecting unit and a second opening portion adapted to expose the ejecting face of the second liquid ejecting unit, the first and second opening portions being formed along a first direction, a beam-shaped portion disposed between the first opening portion and the second opening portion, the beam-shaped portion including: a first support portion adapted to support the first liquid ejecting unit, and a second support portion adapted to support the second liquid ejecting unit, and at least one of projections adapted to engage with engagement holes (hA, hB) formed in each of the first and second liquid ejecting units, and engagement holes adapted to engage with projections formed in each of the first and second liquid ejecting units, wherein the first support portion extends in a second direction perpendicular to the first direction and extends from a first side of the first and second opening portions in the second direction, and the second support portion extends in the second direction and extends from a second side of the first and second opening portions in the second direction, the second side being opposite to the first side in the second direction, and a first support portion adapted to support the first liquid ejecting unit, and a second support portion adapted to support the second liquid ejecting unit, and at least one of projections adapted to engage with engagement holes (hA, hB) formed in each of the first and second liquid ejecting units, and engagement holes adapted to engage with projections formed in each of the first and second liquid ejecting units, wherein the first support portion extends in a second direction perpendicular to the first direction and extends from a first side of the first and second opening portions in the second direction, and the second support portion extends in the second direction and extends from a second side of the first and second opening portions in the second direction, the second side being opposite to the first side in the second direction, and projections adapted to engage with engagement holes (hA, hB) formed in each of the first and second liquid ejecting units, and engagement holes adapted to engage with projections formed in each of the first and second liquid ejecting units, wherein the first support portion extends in a second direction perpendicular to the first direction and extends from a first side of the first and second opening portions in the second direction, and the second support portion extends in the second direction and extends from a second side of the first and second opening portions in the second direction, the second side being opposite to the first side in the second direction, and the first support portion extends in a second direction perpendicular to the first direction and extends from a first side of the first and second opening portions in the second direction, and the second support portion extends in the second direction and extends from a second side of the first and second opening portions in the second direction, the second side being opposite to the first side in the second direction, and characterized in that the first support portion and the second support portion are separated from each other in the first direction.