The present application discloses a display panel and a manufacturing method thereof. The display panel has a display area and a non-display area arranged around the display area. The display panel includes a first substrate, a second substrate, and a first seal, and a second seal disposed between the first substrate and the second substrate. The first seal is doped with conductors. In the present application, the first seal doped with the conductors is provided, and signal traces in the first substrate and a common electrode in the second substrate are conducted by the conductors.