From ethanolic extract of Viburnam cylindricum plant a new iridoid (1S, 4aS, 5R, 7S, 7aR)-methyl 4a,5-dihydroxy- 7-methyl-1-(3,4,5-trihydroxy-6-(hydroxyl methyl) tetrahydro-2H-pyran-2-yloxy)-1,4a,5,6,7,7a-hexahydrocyclo penta[c]-pyran-7-carboxylate have been isolated and characterized with help of 1H, 13C NMR, DEPT and 1H-1H COSY studies. These are new studies in chemical analysis of Viburnam cylindricum.