Reconnaissance instrument convenient to carry

The utility model discloses a portable reconnaissance instrument which comprises a box body, a sliding frame is fixedly connected to the inner side wall of the box body, reset springs are fixedly connected to the top end and the bottom end of the interior of the sliding frame, a fixing mechanism is arranged in the sliding frame, and the fixing mechanism comprises an installation frame. A cloth roller is fixedly connected to the upper surface of the mounting frame, binding cloth is wound on the surface of the cloth roller, positioning wheels are fixedly connected to the surfaces of the two sides of the cloth roller, positioning rods are rotationally connected to the side faces, close to the positioning wheels, of the mounting frame, and torsional springs are arranged in the axes where the positioning rods intersect with the mounting frame. The surveying instrument and the support can be fixed to the surface of the mounting frame through the fixing mechanism, the upper surface and the lower surface of the mount