The present invention prevents yield reduction due to breakage of a signal line through which an image signal is transmitted, while preventing reduction in image quality. This solid-state imaging element comprises a photoelectric conversion unit, a plurality of image signal lines, and an output control unit. In the solid-state imaging element, the photoelectric conversion unit generates an image signal which is a signal corresponding to incident light. Further, the image signal is transmitted through the plurality of image signal lines. Moreover, the output control unit is connected to each of the plurality of image signal lines, and outputs the generated image signal to each of the plurality of image signal lines.