A problem is aimed to provide a liquid supplying technique that can efficiently perform liquid filling by a compact configuration, and an ink jet recording technique that uses this technique. As a solution thereto, in a liquid supplying device (20), a part of a first liquid ejecting passage is arranged at a higher position than a liquid storage (22), a second liquid ejecting passage includes a variable passage resistor (29), and a second opening (24) leading to the second liquid ejecting passage at the liquid storage (22) is arranged at a higher position than a first opening (23) leading to the first liquid ejecting passage.