To provide a tolerance absorbing structure for a wire harness which can prevent in advance the assembling failure at the time of mounting wires on a vehicle and also can improve the assembling workability.The tolerance absorbing structure includes a shield shell 29 which is formed in a cylindrical shape so as to have a fitting space therein and has a supporting piece 41 to be fastened by a vehicle stud bolt 39 and protruding in the direction perpendicular to the axis line of the fitting space, and an inner holder 31 which is fitted into the fitting space of the shield shell 29 along the axis line direction thereby to be held in a manner of being restricted from being separated from the shield shell 29 and has a wire holding hole extending in the axis line direction for fixing wires 23, 23 inserted therein, wherein the inner holder 31 is held within the fitting space of the shield shell 29 so as to have a movable space in the axis line direction.