The present invention relates to a foot-bath agent of Chinese herbal medicine for regulating blood pressure and improving sleep quality, and the components of the formula thereof are as follows: fructus leonuri 20-25%, semen ziziphi spinosae 15-20%, calcined magnetitum 17-22%, spica prunellae 15-20%, ligusticum chuanxiong hort 18-23%, borneolum 0.7-1.2%; provided that, after the final product is prepared using the above raw materials and the blending ratios thereof, the sum of all components should be 100% by weight. The foot-bath agent prepared has advantages including an efficacious and healthy method thereof being highly consistent with healthy living habits of people, an effective regulation of blood pressure and improvement of sleep quality, no allergy and less side effects to human body, and thus obviously is worthy to be popularized and has market prospect.