A new technology for manufacturing large area coating, named explosive compaction- coating (ECC), was proposed in this paper, and its concrete process was described in detail. The ECC for Cu plate- Cu powder was experimented, by variety height of burst and heat treatment of Cu plate four groups divided into, and uniform coating thickness beyond 300 um was obtained. Research shows that the optimal impact velocity is 900 m/s. Annealing treatment of Cu plate has not impact on coating. ECC can manufacture large area metal or nonmetal coating and nano or amorphous coating.