Abstract: A method for bonding a first and a second prefabricated parts of a wind turbine blade comprising the steps of: disposing bands (45, 55, 65) of an adhesive material in a manageable uncured state following traces (43, 53, 63) signaled on a bonding area of one of said parts, said adhesive material being able to flow in a curing stage in a controlled way, the width (W) and height (H) of said bands (45, 55, 65) and the separation (S1) between said traces (43, 53, 63) being determined so that a predetermined separation (S2) between said bands (45, 55, 65) comprised between 0-300 mm remains after the bonding; bonding both parts under predetermined conditions of pressure and temperature. The invention also refers to a wind turbine blade having prefabricated parts bonded using said method.