JiMaiTong (JMT), a Chinese herb compound prescription consisted of Flos chrysanthemi Indici, Spica prunellae and Semen cassiae for anti-hypertension. Luteolin is one of the major bioactivity compositions in F. chrysanthemi Indici in JMT. There are some reports about pharmacokinetics of luteolin in extract of F. chrysanthemi and husks of peanut in normal rats, but it lacked pharmacokinetic information of luteolin residing in a Chinese herb compound prescription in hypertensive animal models. The present study aimed to develop a high-performance liquid chromatography with photodiode array detection (HPLC-DAD) method for determination of luteolin in rat plasma and for pharmacokinetic study after oral administration of JMT to spontaneous hypertensive rats (SHR) and normal Sprague Dawley (SD) rats. After oral administration of JMT to SHR and SD rats, respectively the content of luteolin in blood samples at different time points were determined by a reversed-phase high-performance liquid chromatography (RP-HPLC) coupled with liquid-liquid phase extraction. This revealed a difference in disposition of luteolin in SHR and SD rats and a relationship between plasma concentration and hypertension of pathological state within the organism. This was the first report on the pharmacokinetic compare of luteolin between normal and hypertension pathological state rats. The hypertension pathological state would effects the disposition of luteolin, and it may provide a meaningful basis for the clinical application of JMT. Key words: Luteolin, pharmacokinetic, Flos chrysanthemi Indici, hypertension, Chinese herb.