The utility model discloses a measuring pipe structure of a Coriolis mass flow meter, and belongs to the technical field of LNG mass flow measurement. According to the measuring pipe structure of the Coriolis mass flow meter, the flow meter comprises double rows of measuring pipes arranged in the sensor portion, the two ends of the double rows of the measuring pipes approach to each other to form a triangular structure, fixing blocks for clamping and positioning are arranged at the two ends of the double rows of the measuring pipes respectively, and coil supports are arranged in the middles of the double rows of the measuring pipes and the two corners of the triangular structure of the double rows of the measuring pipes. According to the measuring pipe structure of the Coriolis mass flow meter, the inverted triangular pipes are adopted to enable the whole flow meter to be compact in structure, the appearance is attractive, the double-pipe type structure can reduce sensibility of outside world vibration, phase difference measurement can be easy to achieve, and therefore the measuring precision is higher.