Abstract: To address the challenges of dynamic changes in air combat situations and the diverse strategies of opponents, this study proposes a stylized hierarchical strategy design method for multi-aircraft cooperative air combat based on the OODA（observe, orient, decide, act）framework. In the orient phase, styles are characterized using parameters to enable dynamic style switching. In the decide phase, collaborative decision-making is modeled as an optimization task aimed at maximizing team value, facilitating fleet negotiation and cooperation. Experimental results demonstrate that the proposed method achieves an average winning rate of 89.3% against six high-level strategies in the first National Air Intelligence Gaming Competition. Additionally, the method exhibits excellent robustness in handling unexpected situations such as communication failures and weapon malfunctions, as well as strong generalization capabilities under varying opponent strategies.