The present invention discloses an automatic fecal occult blood detector for detecting a sample kit, comprising: a feed passage and a discharging passage which are provided in parallel and convey a sample kit separately； a transfer platform configured between the feed passage and the discharging passage； a push rod configured to push the sample kit on the feed passage onto the discharging passage through the transfer platform； and an image capturing device provided on one side of the discharging passage to acquire the color band information presented on a test strip. In the present invention, the parallel arrangement of the feed passage and the discharging passage shortens the whole length of the automatic detector, meeting the requirement that the color band information of the test strip is automatically acquired after the sample kit is left in the device a certain time.
