Display device and interface type selection method thereof

A display device provided in the disclosure includes: a display panel including a gate driving circuit and a source driving circuit, a XB board including a driving circuit board assembly, and a system board including a system-on-chip and a second connector connected with the system-on-chip; the driving circuit board assembly includes a display control circuit and a first connector, the display control circuit is connected with the gate driving circuit, the source driving circuit and the first connector; the first connector includes voltage supplying pins, P2P interface pins and SPI pins; the second connector connects the first connector through a connecting member; the system-on-chip is configured for acquiring a type identification signal transmitted by the connecting member and identifying a P2P interface type according to the type identification signal; and transmitting corresponding P2P data to the connecting member according to the P2P interface type.