Engineering surveying and mapping handheld measuring device

The utility model relates to the technical field of measuring engineering, in particular to an engineering surveying and mapping handheld measuring device which comprises a main body and a base, the main body and the base are arranged in a split mode, clamping grooves are formed in the periphery of the bottom of the main body, and a groove is formed in the middle of the top of the base. According to the measuring device, the defects in the prior art are overcome, through the arrangement of the base, the clamping groove, the groove, the clamping block and the supporting plate, when the measuring device is used for measuring, a user can install the base at the bottom of the main body, the main body is aligned with the groove in the top of the base, and the diameter of the groove is equal to that of the main body; the main body and the base are in close contact, meanwhile, the clamping groove in the bottom of the main body is aligned with the clamping block on the top of the base, the clamping block and the clam