A working machine comprising: a machine body; an operator's seat mounted on the machine body; an operation base disposed on a lateral side of the operator's seat; a protection unit accommodating the operator's seat including a seat board portion and a backrest portion, and the operation base; a printed matter; and a storage structure configured to store printed matter,and provided between the protection unit and the operation base, and an operation lever disposed on the operation base to operate a working device provided on the machine body, the working machine characterized in that it further comprises: a string of flexible material connecting between the printed matter and the protection unit, wherein the storage structure is disposed rearward from the operation lever, and configured to allow the printed matter stored therein to position the printed matter forward from the backrest portion with respect to the machine body, wherein the storage structure is configured to allow the printed matter stored therein to be slanted so that an upper portion of the printed matter is positioned rearward than a lower portion thereof, and to allow the printed matter stored therein to position an upper portion of the printed matter above an upper face of the operation base, and wherein the string has one end connected to the printed matter and the other end connected to a position of the protection unit above the storage structure. a machine body; an operator's seat mounted on the machine body; an operation base disposed on a lateral side of the operator's seat; a protection unit accommodating the operator's seat including a seat board portion and a backrest portion, and the operation base; a printed matter; and a storage structure configured to store printed matter,and provided between the protection unit and the operation base, and an operation lever disposed on the operation base to operate a working device provided on the machine body, the working machine characterized in that it further comprises: a string of flexible material connecting between the printed matter and the protection unit, wherein the storage structure is disposed rearward from the operation lever, and configured to allow the printed matter stored therein to position the printed matter forward from the backrest portion with respect to the machine body, wherein the storage structure is configured to allow the printed matter stored therein to be slanted so that an upper portion of the printed matter is positioned rearward than a lower portion thereof, and to allow the printed matter stored therein to position an upper portion of the printed matter above an upper face of the operation base, and wherein the string has one end connected to the printed matter and the other end connected to a position of the protection unit above the storage structure. a string of flexible material connecting between the printed matter and the protection unit, wherein the storage structure is disposed rearward from the operation lever, and configured to allow the printed matter stored therein to position the printed matter forward from the backrest portion with respect to the machine body, wherein the storage structure is configured to allow the printed matter stored therein to be slanted so that an upper portion of the printed matter is positioned rearward than a lower portion thereof, and to allow the printed matter stored therein to position an upper portion of the printed matter above an upper face of the operation base, and wherein the string has one end connected to the printed matter and the other end connected to a position of the protection unit above the storage structure.