To provide a maintenance-free control valve-type shield lead acid battery good in cycle characteristics and low-temperature characteristics.

In a control valve-type shield lead acid battery using a tubular electrode as a positive electrode, the positive electrode is a tubular electrode having a structure where a tubular positive electrode plate A is sandwiched between two sheets of separators 6. The tubular positive electrode plate includes core metal 9 of a collector electrode made of lead or a lead alloy at the center of a fine porous polyolefin resin tube 7 having a cross section of a continuous rectangular ladder shape, while the inside of the tube is filled with a lead oxide active material 10.