The utility model belongs to the technical field of mapping device, concretely relates to centering rod is measured with prism combination formula to GNSS receiver, including the GNSS receiver, stillinclude scalable centering rod, fixed link rod, member connecting device, prismatic reflection device and level bubble, scalable centering rod pass through member connecting device and connect fixed link rod, the GNSS receiver is connected on fixed link rod, the prismatic reflection device is connected on member connecting device, the level bubble is connected on scalable centering rod, has solvedamong the prior art GNSS and has measured the centering rod and do not unify with prism measurement centering rod joint, can't be general, the lower problem of measurement of efficiency, the utilitymodel discloses centering rod is measured with prism combination formula to GNSS receiver can realize the convenience, swiftly, accurately measure urban, as to construct survey districts such as compact district surface feature general configuration of the earth's surface topography, and its development makes GNSS measure and the total powerstation measurement can be gone on simultaneously, has reduced wild external measurement operation intensity, has improved work efficiency.