Based on the domestic and foreign strategic alliance theory, this paper analyzes the relationship among alliance trust, alliance conflict and alliance stability, and uses the questionnaire survey method to get the conclusions: First, the alliance trust and communication can positively affect the alliance stability; second, the influence of alliance conflict on alliance trust and communication is generally negative; third, alliance trust and communication play a complete mediation effect in alliance conflict and alliance stability. Some suggestions are putting forward for the maintenance of good alliance relations based on the conclusion.