Increased prevalence of type 2 diabetes mellitus and its close clustering with obesity, arterial hypertension, dyslipidemia and other pathologies commonly referred to as metabolic or insulin resistance syndrome, represents one of the major health problem worldwide. The side effects of most of oral antidiabetics and insulin include increase in body weight and/or hypoglycemia that may limit its use in some patients. GLP-1 agonists are medicaments stimulating GLP-1 receptor similarly as endogenous GLP-1. These substances are in contrast to endogenous GLP-1 resistant to inactivation by ubiquitous enzyme dipeptidyl-peptidase 4 which enables its administration once or twice daily. GLP-1 agonists not only significantly improve diabetes compensation with minimal risk of hypoglycemia but also decrease body weight, blood pressure and improve numerous parameters of cardiovascular risk. The aim of this review is to summarize current knowledge with respect to use of GLP-1 agonists in the treatment of type 2 diabetes and its future perspectives. We will focus mostly on the two drugs that are currently available in Czech Republic--exenatide and liraglutide.