According to one embodiment, a sheet conveyance device includes a plurality of conveyance rollers, a sheet sensor, and a control unit. The conveyance rollers convey a sheet on a conveyance path. The sheet sensor is provided at least at a first position and a second position on the conveyance path for the sheet and senses passage of a front end of the sheet and passage of a rear end of the sheet. The control unit determines double sheet feed based on a first time as time from passage of a front end of a first sheet through the first position to passage of the front end of the first sheet through the second position, a second time as time from sensing of the passage of the front end of the first sheet by a sheet sensor to sensing of passage of a rear end of the first sheet by the sheet sensor, a third time as time from passage through the first position of a front end of a second sheet conveyed by the conveyance roller after the first sheet to passage of the front end through the second position, and a fourth time as time from sensing of the passage of the front end of the second sheet by a sheet sensor to sensing of passage of a rear end of the second sheet by the sheet sensor.