Adjustable surveying instrument for complex terrain

The utility model discloses an adjustable surveying instrument for complex terrains, which relates to the technical field of topographic survey and comprises a mounting block, an angle adjusting component mounted at the lower part of the mounting block, a convenient recording component mounted on the side surface of the mounting block, and a surveying and mapping machine arranged at the top end of the mounting block. The limiting blocks at the bottom ends of the sliding blocks rotate in the sliding grooves, so that the first supporting leg frame and the second supporting leg frame rotate to proper positions for supporting, some positions which are prone to sliding or cannot be supported can be avoided, use is convenient, the length of the second supporting leg frame can be adjusted by unscrewing the bolts, and therefore the supporting leg is suitable for measurement of various uneven road sections. By rotating the clamping column by 90 degrees, the recording plate is slowly overturned to a horizontal state, r