A photodetection device includes: a photoelectric converter generating charge; a first transfer channel having first and second ends, the first end being connected to the photoelectric converter, charge from the photoelectric converter being transferred from the first end toward the second end; a second transfer channel diverging from the first transfer channel at a first position; a third transfer channel diverging from the first transfer channel at a second position, further than the first position from the first end; a first charge accumulator accumulating charge transferred through the second transfer channel; a second charge accumulator accumulating charge transferred through the third transfer channel; a first gate electrode switching between transfer/cutoff of charge in the first transfer channel; and at least one second gate electrode switching between transfer/cutoff of charge in the second and third transfer channels, the third transfer channel being wider than the second transfer channel.