对ＳＤ大鼠力竭性运动所致应激性胃溃疡进行了观察，并对其可能机制和 防治措施进行了探讨。结果：大鼠力竭性游泳运动可导致胃粘膜产生应激性溃疡，运动后２４小时溃疡消失。应激性溃疡的产生是由于攻击因子和防御因子失衡，尤其是防御因子的降低所致。复方丹参注射液对其具有防治作用。 Stress gastric ulcer caused by exhaustive exercise in SD rats was observed, and its possible mechanism and preventive measures were discussed. Results: Exhaustive swimming exercise in rats resulted in stress ulcer in gastric mucosa. The ulcer disappeared 24 hours after exercise. Stress ulcer production is due to the imbalance between the attack and defensive factors, especially the reduction of defensive factors. Compound Salvia Injection has a preventive effect on it.