Disclosed are a substrate inspection apparatus and a substrate processing system. The substrate inspection apparatus includes a sensor module and a jig associated with the sensor module to transfer the sensor module. The sensor module may include a housing having a first surface and a second surface facing each other and including an insertion hole connecting the first and second surfaces to each other, a sensor inserted into the insertion hole to measure a state of the substrate, and a tilting member on the housing to adjust tilt of the housing.