The invention provides a high-performance hygienic vortex shedding flowmeter. The high-performance hygienic vortex shedding flowmeter is characterized by comprising a measuring tube meter body, a vortex generation body, a flow sensor and a flow integrating displayer, wherein the vortex generation body is mounted in the middle of an inner cavity of the measuring tube meter body; the vortex generation body adopts a columnar structure with the section in a symmetric hexagon shape, the hexagon comprises a first side, a second side, a third side, a fourth side, a fifth side and a sixth side, two surfaces with sections being the fifth side and the sixth side form an incident flow surface, and the incident flow surface faces a flow inlet direction of the measuring tube meter body. According to the provided high-performance hygienic vortex shedding flowmeter, the measuring tube meter body and the vortex generation body adopt an integrated structure, and no hygienic dead angles such as gaps in an inner cavity exist; the incident flow surface is in a non-planar obtuse-angle shape due to the special sectional shape of the vortex generation body, and the obtuse-angle-shaped surface is not easily stained with impurities; the end part of the sensor is hemispherical, and a fluid has a probe washing function when flowing through a probe.