To provide a woven fabric-inspecting device capable of highly precisely inspecting a woven fabric without lowering the quality of the woven fabric.

Light projected from a projector is reflected from a refection mirror 17 to a woven fabric W. Convex lenses 20, 21 convert the reflected and scattered light from a point P on the woven fabric W into parallel light. The parallel light reflected from the reflection mirror 18 is directed to a light- condensing lens 32. The parallel light reflected from a reflection mirror 19 is directed to a light-condensing lens 33. The light condensing lens 32 condenses the reflected light from the reflection mirror 18 on a light-receiving element 30, and the light-condensing lens 33 condenses the reflected light from the refection mirror 19 on a light-receiving element 31. The light-receiving elements 30, 31 output converted current signals to current-voltage conversion circuits 35, 36, and the current-voltage conversion circuits 35, 36 convert the converted current signals to voltage signals and subsequently output the voltage signals to a summing arithmetic circuit 37.