The present invention provides a display panel and a display device. The display panel includes a main display region and at least one function add-on region, the function add-on region includes at least one display light-transmitting region, a plurality of first pixel driving circuits are disposed at a periphery of the display light-transmitting region, and a multiple layers transparent lines is disposed to electrically connect a first pixel anode and the first pixel driving circuits to drive first display pixels to emit light, which is beneficial for increasing wiring space, as well as improving light transmittance, photographing effect, and display effect of under-screen cameras.