PURPOSE: A propeller blade for a ship is provided to prevent generation of cavitation and an erosion phenomenon which is caused by the cavitation. CONSTITUTION: A propeller (100) blade (120) for a ship includes a tip (130). The tip is formed toward the stern side or the bow side on the end of one side between a pressure side (122) and a suction (121) side of the blade, where the suction surface of the blade faces the hull while the pressure surface of the blade faces the stern. The blades are formed with an interval along the circumference of a hub (110). The thickness of the blade becomes thinner from the hub to the end, and begins to become thicker from a position on which the tip is formed. [Reference numerals] (AA) Stern side; (BB) Ship body side
