Exhaust pipe testing fixture

The utility model discloses an exhaust pipe testing fixture, which is characterized in that the exhaust pipe testing fixture comprises a bottom plate, a first end positioning block, a linear detection block, a curve detection block and a second end positioning block which are sequentially arranged on the bottom plate, the first positioning block is provided with a first positioning groove, and the first positioning block is provided with a first detection block which horizontally slides along the axis direction of the first positioning groove; the linear detection block is provided with a first semicircular through groove extending linearly, the curve detection block is provided with a second semicircular through groove extending along a preset arc line, the second end positioning block is provided with a second positioning groove, and the second end positioning block is provided with a second detection block horizontally sliding along the axis direction of the second positioning groove. The front end face of