Among patients who are receiving treatments at an oriental medical hospital for various symptoms and diseases, patients whose main disease is accompanied by metabolic syndrome with abnormal liver function. This research was performed in order to observe the progression of changes in the liver function and serum lipid profile after the oriental medical treatments to patients who have been receiving oriental medical treatment for various other diseases and have been diagnosed as having metabolic syndrome at their first visit to the hospital based on NCEP ATP III diagnosis criteria and WHO Asia Pacific region criteria. Total number of subject patients were 39cases(mean age:55.58${pm}$2.09 years) which had 20 male and 19 female. For the references for hepatic enzyme levels and blood lipid profile were measured in before treatment and four times after treatments(every 2.31${pm}$06.17 weeks). Serum AST was 48.86${pm}$7.46 IU/L before oriental medical treatment. After the treatment, 40.63${pm}$4.69, 43.12${pm}$5.46, 37.82${pm}$4.52 IU/L were measured where although the level decreased to the normal level compared to pre-treatment, the value was not significant statistically(P>0.05). ALT was 66.26${pm}$11.01 IU/L before oriental medical treatment. After the treatment 62.10${pm}$8.20, 61.10${pm}$8.76, 43.79${pm}$5.68 were measured where although the level decreased, abnormally high level was maintained. The last result was significant statistically(P<0.05) compared to pre-treatment. ALP was 193.06${pm}$14.20 IU/L before oriental medical treatment. After the treatment, 176.80${pm}$6.48, 177.46${pm}$11.81, 162.41${pm}$9.06 where although compared to pre-treatment the last result was significant statistically(P<0.05), the change was within the normal range. ${gamma}$-GGT was 87.83${pm}$12.59 IU/L before oriental medical treatment. After the treatment, progressively near normal level was achieved with 118.73${pm}$46.45, 85.03${pm}$17.12, 70.64${pm}$10.93 and the last result was statistically significant compared to pre-treatment (P<0.05). Blood triglyceride was 217.63${pm}$32.18 mg/dL before oriental medical treatment. After treatment 215.09${pm}$22.18, 189.93${pm}$22.44, 191.22${pm}$18.51 where abnormal values continued even after treatment although results was not statistically significant compared to pre-treatment(P>0.05). Total-cholesterol was 197.28${pm}$9.24 mg/dL before oriental medical treatment, after treatment 201.55${pm}$11.13, 186.87${pm}$8.77 and 186.68${pm}$7.61 were measured that results were not statistically significant compared to pre-treatment(P>0.05). HDL-cholesterol was 41.88${pm}$2.38 mg/dL before oriental medical treatment, after treatment 48.75${pm}$4.22, 44.10${pm}$1.91, 48.00${pm}$2.06 the results were not statistically significant compared to pre-treatment(P>0.05). LDL-cholesterol was 111.66${pm}$13.08 mg/dL before oriental medical treatment, after treatment 109.94${pm}$10.18, 101.79${pm}$8.63, 104.00${pm}$6.98 the results were not statistically significant compared to pre-treatment(P>0.05). With such results, even if common oriental medical treatments were given to metabolic syndrome patients with abnormal liver function, the liver function was confirmed not to be aggravated, and the concentration of lipids in the blood was confirmed not to be affected in most patients.