The present invention relates to a surveying and mapping device, more specifically a portable surveying and mapping device with recording function, which includes a rectangular frame, an L-shaped rod, a clip, a fastening screw II, an inclined pointer, a horizontal axis, a trapezoidal weight, a front Horizontal bar, sleeve post, toggle pointer I, semicircle ruler and optical surveying instrument, the present invention can record the angle that optical surveying instrument rotates to horizontal state on inclined ground, is convenient to observe the surveying and mapping environment of optical surveying instrument. The front and rear ends of the horizontal axis are respectively connected to the middle of the rectangular frame, and the middle of the horizontal axis is fixedly connected with a trapezoidal weight, which is wide at the top and narrow at the bottom. The front end of the horizontal axis is fixedly connected with the front horizontal bar, the lower side of the front horizontal bar is fixedly connected with a semi-circular ruler, the outer edge of the semi-circular ruler is provided with a scale, the middle part of the front horizontal bar is fixedly connected with a sleeve column, and the upper end of the pointer I is rotated Connected to the sleeve, the relative position of the toggle pointer I and the sleeve can be fixed.