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The object is to explore an optimal supply model of water and nitrogen on maize under alternative furrow irrigation, the micro-field experiments of rain-shield was conducted about furrow irrigation mode, nitrogen rate and irrigation amount. Results showed that the maize yield of alternative furrow irrigation (AFI), middle water and low nitrogen rate had the maximum grain yield, which was 1.06 times of AFI, high water and high nitrogen rate. Under the same water and nitrogen, the yield of AFI was 1.05 times of normal furrow irrigation (NFI), and 1.16 times of fixed furrow irrigation (FFI). Total nitrogen accumulation (TNA) of AFI was the most, NFI was the second, and FFI was the minimum. The order of effect on TNA was furrow irrigation mode, nitrogen rate and irrigation amount, the influences of irrigation amount on TNA reached significant level.