A fishing lure light emitting device includes a body, a light guiding bar, and a light emitting member. The body has a holder. The light guiding bar is embedded in the body. One end of the light guiding bar has a light receiving portion connected in the holder. The light emitting member includes a base and a light emitter. The base is detachably inserted into the holder. The light emitter is received in the holder and faces the light receiving portion of the light guiding bar. Since the base can be detached from the holder of the body, the light emitting member can be assembled to different bodies.