To provide a Coriolis flowmeter in which measuring precision is improved and excellent temperature characteristics can be obtained.

A curved Coriolis flowmeter comprises a symmetric surface including a central axis of a flow tube 2 and a symmetric surface being vertical with the central axis of the flow tube 2. A flow passage of the stainless flow tube 2 includes a vertical portion and a horizontal portion. A vibration body 3 has a central axis passing through an intersection of a central axis 7a and a central axis 7b. The vibration body 3 is created by joining a vibration body 3a and a vibration body 3b. The flow tube 2 and the vibration body 3 are joined to a stainless support 6 by welding. The support 6 includes an inflow port 8, an inflow path 9, an outflow path 10, and an outflow port 11 for circulating a fluid.