To restrain deterioration of other characteristics even when horizontal transfer is smooth.

A solid image pickup device 100 comprises a plurality of photoelectric conversion parts 120 arranged on a pixel part 110 in matrix; a plurality of vertical transfer parts 130 provided corresponding to columns of the plural photoelectric conversion parts 120 and transferring a plurality of signal charges read from the corresponding plural photoelectric conversion parts 120 in a column direction; a first horizontal transfer part 140a and a second horizontal transfer part 140b for transferring the signal charges transferred by the plural vertical transfer parts 130 in a row direction and arranged in parallel; and a first output part 160a and a second output part 160b including a plurality of floating diffusion parts formed in each of adjacent areas at output ends of the first horizontal transfer part 140a and the second horizontal transfer part 140b, and outputting the transferred signal charges as electric signals. The plural floating diffusion parts are arranged at an interval wider than an interval between the adjacent horizontal transfer parts.