A faucet cartridge for reducing warm water

PURPOSE: A warm water saving cartridge for a faucet is provided to reduce wasted energy due to the operation of a boiler by preventing unintended discharge of warm water when a lever positioned in the middle is operated to outflow the water. CONSTITUTION: A warm water saving cartridge for a faucet comprises a lever(60), a fixed disk(20), and a movable disk(30). The lever is operated in the same direction as a user operates for a water outflowing function such as supplying or blocking water, a flow controlling function, and a warm water and cold water controlling function. The fixed disk comprises a cold water discharge port, a hot water discharge port, and a mixed water discharge port. The movable disk is in contact with the fixed disk and operates together with the operation of the lever. The movable disk operates in a different direction from a direction of the lever operation to selectively open or close the cold water discharge port, the hot water discharge port, or the mixed water discharge port.