The aim of this randomized single blind clinical trial study is to investigate the effect of acarbose and metformin use on ovulation induction success in women with polycystic ovary syndrome. Inclusion criteria: age 20-40 years, women with polycystic ovary syndrome diagnosed by the rotterdam consensus criteria. Exclusion criteria: Smoking, Cushing's syndrome, thyroid function disorders, androgen secreting tumors, patients with liver disease, kidney disease, heart disease, diabetes, and use of other drugs for polycystic ovary syndrome. A total of 60 women with polycystic ovarian syndrome were selected and randomly divided in two control and intervention groups using block method of 4. Intervention group receive acarbose 100 mg/day for 3 months. This method that in the first week they receive 1 tablet, second week two tablets and third week three tablets per day. Control group receive metformin 500 mg/day for 3 months. This method that in the first week they receive 1 tablet, second week two tablets and third week three tablets per day. All patients underwent laboratory examination before intervention including metabolic parameters (fasting sugar, fasting insulin, triglycerides and cholesterol) and clinical performance (hirsutism and hypertension). At the end of 3 months for the above they shall be examined and compared.