The utility model discloses a fixing device of foil gage is pasted in the laboratory at aluminum pipe or thin cylinder surface. Board, quadrant arc aluminum pipe fastener, slip circle fastener, five parts of bolt and aluminum pipe are mainly placed including the aluminum pipe to this design. The board surface is placed to the aluminum pipe has six U type grooves that the diameter is different, isadapted to the aluminum pipe or the thin cylinder of different diameters. Quadrant arc aluminum pipe fastener is placed the board through bolt and aluminum pipe and is connected, and this fastener isconvenient for draw a straight line at aluminum pipe or thin cylinder surface along its length direction, the scaled chi in quadrant arc aluminum pipe fastener side simultaneously, and when aluminum pipe or thin cylinder need the symmetry to paste the foil gage, definite its plane of symmetry of being convenient for, this fastener prevents also that the foil gage from inclining when pasting. The slip circle fastener can slide along the long limit of quadrant arc aluminum pipe fastener, and the slip circle fastener is convenient for at the width of aluminum pipe or thin cylinder surface markinga cross line and definite foil gage at the scaled chi of its radian direction. This fixing device has not only avoided when aluminum pipe or thin cylinder surface paste the foil gage, strain gauge adhesion slope or the inaccurate error of bringing of sticking position, and this fixing device simple manufacture, convenient to use, repeatedly usable have higher economical use and worth when experimental moreover.