The present disclosure is directed to a biochip (200) including a side emitting-type light-emitting device (211), the bio-chip comprising: a bio-layer (210) having formed therein a plurality of reaction regions (212) in which a biochemical reaction between a reference sample and a target sample occurs; and an image sensor layer (220) formed under the bio-layer und having formed therein a plurality of photodetectors (221), wherein the side emitting-type light-emitting device is disposed in the bio-layer, and light emitted from the sides of the side emitting-type light-emitting device is incident to the plurality of reaction reagions.