There is provided a solid-state image sensor including a pixel region in which a plurality of pixels of a preset plurality of colors are arranged in a two-dimensional matrix shape, a vertical signal line corresponding to a pixel column of the pixel region, a trigger line corresponding to a pixel row of the pixel region and supplying a trigger pulse corresponding to each of the colors of the plurality of pixels, and a trigger pulse supply part supplying, via the trigger line, the trigger pulse in a manner that a signal voltage of each pixel of a predetermined color in the pixel region is read out for each pixel row via the vertical signal line, and thereafter, a signal voltage of each pixel of another color in the pixel region is read out for each pixel row via the vertical signal line.