n this paper, outage probability and throughput over Nakagami-m of incremental relaying using opportunistic are investigated. We derive the closed-form expressions for the outage probability and throughput under the mode of selection combining (SC) including direct link at arbitrary SNR (signal to noise ratio) regime with decode and forward. Computer simulation result verifies our analysis. This paper compares the incremental relaying using opportunistic and opportunistic without incremental relaying. Simulation result shows that the throughput of the incremental relaying using opportunistic outperforms the traditional opportunistic relaying.