For better intelligent degree and stability of simulation machine fish in 2D simulation collaborative over hole project, put forward “simulation machine fish intelligent error correction” and “multi-head balls strategy alternating cooperation”. Divide competition into “without ball” stage and “dribbling ball” stage. Introduce traditional strategies of 2 stages, and their optimal strategies, then verify by test. The test results show that: 2 simulation machine fish complete competition by alternating cooperation, and they have better intelligent degree, considering sore requirement and filed feature, optimal strategy has increasing speed and better stability.