The present invention discloses a regional comprehensive energy device and a network dual-layer optimization configuration method, belonging to the field of regional comprehensive energy planning. Themethod comprises the following steps that: comprehensive energy is divided into electrical/gas/thermal/cool energy systems according to load demands, coupling relations among different energy systemsare considered to establish a regional comprehensive energy device and a network planning model consisting of an upper layer planning model and a lower layer planning model, the lower layer planningis employed to perform decoupling solution of the electrical/gas/thermal/cool energy systems, maximum power of the device and the line is output, and feedback is performed to the upper layer; and theupper layer planning considers the device and network installation capacity constraint and performs solution, device capacity and line layout variables are output to regulate the lower layer, iteration solution is performed until convergence, and the device and network planning is achieve according to the obtained device capacity and a line layout result. The regional comprehensive energy device and the network dual-layer optimization configuration method have advantages of coupling planning of the electrical/gas/thermal/cool energy systems, reduction of establishing investment of the comprehensive energy area and reduction of system operation loss.