Palm sap contain sugar and other nutritional components that are good for the growth of microorganism, one of which lactic acid bacteria (LAB). The purpose of this research was to isolate and identify LAB genus from fermented sap of Arenga pinnata. Lactid acid bacteria were isolate in MRS agar supplemented with CaCO3 0.2%. Identificatied morpholologically including Gram staining, shape cell obs…