Disclosed is a biaxially stretched polypropylene film (100) which comprises a biaxially stretched film layer (101) that contains a propylene polymer, and a surface resin layer (103) that is positioned on at least one surface of the biaxially stretched film layer (101) and contains a homopolypropylene (A), wherein the half-life of the saturated charged voltage as determined by the process described below is 1,300 seconds or less. (Process) A voltage is applied to the surface resin layer (103)-side surface of the biaxially stretched polypropylene film (100) for 30 seconds at an application voltage of 10 kV, a temperature of 23 degrees centigrade and a humidity of 50 percent RH, with the distance between the sample and the electrode being 20 mm, and the saturated charged voltage of the surface of the biaxially stretched polypropylene film (100) and the half-life of the saturated charged voltage are calculated in accordance with JIS...

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