A CMOS color image sensor, which is a solid-state image pickup device, includes a plurality of pixels arranged in a matrix having a plurality of rows and a plurality of columns, each of the plurality of pixels converting the incident light intensity into an electrical signal; a pixel array including the plurality of pixels; row-selection lines; and column-reading lines. Two column-reading lines are provided for each column of the pixel array. Pixels in even rows of each column are connected to one column-reading line and pixels in odd rows of each column are connected to the other column-reading line.