The method for producing ＇＇dicylate＇＇ -tricyclo[5,2,1,0(2,6)]dec-3-enyl-8(9)-acetate - from acetic acid and bicyclo[5,2,1,0(2,6)]deca-3,8-diene has been improved. The reaction is carried out at a temperature of 130-170 degrees C and spontaneous pressure, which enables the use of strong acids as catalysts to be discarded.