Disclosed is a P2P connection method in a mobile environment. The P2P connection method in a mobile environment according to an embodiment of the present invention comprises: a step where a first peer transmits a connection request message to a second peer by using a push method; a step where the second peer transmits, to the first peer, a connection acknowledgement message which contains connection information including a private and a public address of the second peer in a network and the address of a relay server; and a step where the first peer attempts to connect to the second peer by making a first connection attempt with the private address of the second peer, a second connection attempt with the public address of the second peer, and a third connection attempt with the address of the relay server simultaneously or successively at predetermined intervals.
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