The invention discloses polycyclic analog derivative shown in a kind of logical formula (I), preparation method and contain the pharmaceutical composition of the derivative, and its as therapeutic agent, especially GPR40 agonists and the purposes in the drug of the preparation treatment diseases such as diabetes and metabolic disorder, each substituent group of formula of (I) is identical as the definition in specification.本發明公開了一種通式(I)所示的多環類衍生物、其製備方法及含有該衍生物的藥物組合物，及其作爲治療劑，特別是GPR40激動劑和在製備治療糖尿病和代謝性病症等疾病的藥物中的用途，其中通式(I)的各取代基與說明書中的定義相同。
