An inkjet recording apparatus includes a conveyance portion, a recording head, a detection portion, and a control portion. The recording head is disposed opposite the conveyance portion, and includes a plurality of nozzles which eject ink to the recording medium conveyed by the conveyance portion. The detection portion detects the thickness of the recording medium. The control portion controls the ink ejection speed from the recording head based on the thickness of the recording medium detected by the detection portion.