Objective The topic of this study was to study the inhibitory effect of resveratrol on hypercoagulable state in rats and its relationship with the expression of NF-κB. Methods Rats were divided into control and model groups, and resveratrol (high dose, 60 mg/kg), resveratrol (low dose, 30 mg/kg) and aspirin (10 mg/kg) were given by intragastric administration for 7 d. Then, the rats were treated by adrenaline with ice bath or thrombin to generate hypercoagulable state. Blood samples were collected to test the prothrombin time (PT), activated partial thromboplastin time (APTT) and blood viscosity. Vascular endothelial cells were collected to detect the expression of NF-κB by western blotting. Results PT and APTT values of rats in the control, resveratrol (high dose) and aspirin groups were significantly increased than the model group (P< 0.05). Blood viscosity of rats in the control, resveratrol (high dose) and aspirin groups was significantly lower than the model group (P< 0.05). The expression of NF-κB was decreased than that of the model group (P< 0.05). Conclusions Resveratrol in high dose (60 mg/kg) can inhibit hypercoagulable state of rat, which may be related with its effect on decreasing the expression of NF-κB.