A sample smearing apparatus of an embodiment includes: a first slide glass feeder that feeds a slide glass before processing; a slide glass transporter including a slide glass holder that holds the slide glass, that is capable of receiving the slide glass at a first slide glass feeding position from the first slide glass feeder, and transports the received slide glass while holding the slide glass with the slide glass holder; and a slide processor that performs processing on the slide glass held by the slide glass holder.