A polarized vinylidene fluoride/tetrafluoroethylene copolymer resin film having 2,000 or fewer spot defects per m 2 , the number of spot defects being measured by a MaxEye.Impact defect measurement system; the MaxEye.Impact defect measurement system reading defects of the film, using a surface inspection system in which a CCD camera is placed so as to detect defects at an angle of 45 degrees relative to an LED light source, defects of the film are read within a rectangular range of 300 mm in a width direction, which is a direction perpendicular to a scanning direction, and 150 mm in a machine direction, which is the scanning direction, while the film is scanned under the camera at a rate of 20 m/min; wherein the LED light source has light intensity output controlled at 50 % with 60000 LUX at 100 % output and the CCD camera has a linear actual field of view with a length of 596 mm, a scanning direction resolution 0.040 mm/scan and an actual field-of-view width direction resolution of 0.099 mm/pixel; wherein, first, defects having a bright area of 1.5 mm 2 or less and a dark area of 1.4 mm 2 or less are selected, wherein the bright area is an area of portions having no defects and being brighter than the background when the range from brightness 5 to brightness 10 is divided into 127, and the threshold is set as 65/127, the bright portion is a portion having a brightness exceeding the threshold and the dark area is an area of dark portions being darker than the background when the range from brightness 5 to brightness 0 (pure black) is divided into 127, and the threshold is set as 100/127, the dark portion is a portion having a darkness exceeding the threshold; and next, in order to remove defects resulting from causes other than a corona treatment from the selected defects, a circumscribed rectangle of defect is set so as to have two sides along the scanning direction, and the number of only defects having a circumscribed width of 2.88 mm or less, a circumscribed length of 0.43 to 2.30 mm, an aspect ratio of -39 to + 27, an occupancy area ratio in the circumscribing rectangle of 4,000 to 6,950; and an area ratio R3 of -3,100 to +5,200, is automatically counted as spot defects by using MaxEye.Impact defect measurement system, wherein the circumscribed width is the width of the rectangle circumscribing the defect, the circumscribed length is the length of the rectangle circumscribing the defect, the aspect ratio is a ratio of the circumscribed length and the circumscribed width of a defect and is defined as a quotient obtained by dividing the larger value between the circumscribed length and the circumscribed width by the smaller value between the circumscribed length and the circumscribed width and such that a positive sign is given to the quotient when the circumscribed length is larger than the circumscribed width and a negative sign is given to the quotient is given when the circumscribed width is larger than the circumscribed length, the occupancy area ratio is a ratio of a total area of bright areas and dark areas to a rectangle circumscribing a defect, the area ratio is defined as a value obtained by subtracting the dark area from the bright area then dividing the resulting value by the total area, and R3 is (LA-DA)/A x 10,000 wherein LA is light area, DA is dark area, and A is total of the light area and the dark area, is automatically counted as spot defects by the surface inspection system. <EOS>