NOVELTY - A catalyst comprises 0.5-10 mass% of ruthenium in conversion of catalyst standard and metal, 1-5 mass% of lanthanum in conversion of catalyst standard and metal, 0.5-10 mass% of alkali metals in conversion of catalyst standard and metal, and alumina support. The alumina support has surface area of 100-250 m2/g, and physical property value of less than or equal to 0.5 ml/g of water absorption amounts.    USE - A catalyst for hydrogen production (claimed) used for fuel cell.    ADVANTAGE - The catalyst is excellent in catalyst strength, and maintains high activity even if used for performing hydrogen production reaction for a long period of time.    DETAILED DESCRIPTION - A catalyst comprises 0.5-10 mass% of ruthenium in conversion of catalyst standard and metal, 1-5 mass% of lanthanum in conversion of catalyst standard and metal, 0.5-10 mass% of alkali metals in conversion of catalyst standard and metal, and alumina support. The alumina support has surface area of 100-250 m2/g, and physical property value of less than or equal to 0.5 ml/g of water absorption amounts. The sum of characteristic X-ray strength of lanthanum detected between distance from catalytic center to 1/2r0 is greater than or equal to 70% with respect to sum of characteristic X-ray strength of lanthanum from catalyst outer surface to catalytic center when line-analysis measurement is carried out about lanthanum from one outer surface of catalyst to other outer surface in one direction so that it may pass along center of catalyst cross section and distance from catalyst outer surface to catalytic center is made into r0. INDEPENDENT CLAIMS are included for:    (1) a manufacturing method of catalyst for hydrogen production from hydrocarbon involving using solution which contains compound containing lanthanum on alumina support, supporting 1-5 mass% of lanthanum in conversion of catalyst standard and metal, baking, using solution containing compound which contains ruthenium in support, supporting 0.5-10 mass% of ruthenium in conversion of catalyst standard and metal, carrying out alkali treatment, drying, using solution containing compound which contains alkali metal, supporting 0.5-10 mass% of alkali metals in conversion of catalyst standard and metal, and drying; and    (2) a manufacturing method of hydrogen involving reacting greater than or equal to 90 mass% of hydrocarbon and water vapor in presence of catalyst at 400-800 degrees C and pressure of 0-5 MPa-G in which molar ratio (H2O/C) of water vapor (H2O) and carbon (C) is 2.5-5.