A method and apparatus for charging liquid into open, empty containers or capsules in a process of making liquid-filled capsules that are to be loaded into cigarette filters and may contain water, perfume or other substances to improve taste of cigarettes. Liquid is supplied to a hermetically enclosed space formed above a pit block and around the outer circumference thereof and then discharged from it to fill the liquid in a plurality of pits that pass through the pit block. Each pit has a narrow nozzle. A plurality of containers mounted on a tray are carried to a predetermined position under the pit block so that the containers are located immediately below the corresponding nozzles. An air pressure is supplied to the enclosed space to pressurize the liquid contained in the pits and thereby force the liquid to flow down the nozzles into the containers on the tray, which is then moved from under the pit block.