The invention provides a fluid pipeline with specific rectifying form, comprising an inlet guide cavity, a front spoiling cavity, a front rectifying cavity and a straight measuring pipe; one end of the inlet guide cavity is communicated with a process pipe, with the other end communicated with the front spoiling cavity; the front spoiling cavity is communicated with the front rectifying cavity; the front rectifying cavity is communicated with one end of the straight measuring pipe. The fluid pipeline with specific rectifying form has the advantages that the fluid pipeline is suitable for velocity type flow measurements under various principles; the required overall mounting length may be decreased to 3 times of the diameter of a pipeline to be equipped with a flowmeter; flow can be measured without using front and rear straight segments; by using the symmetric arrangement design, it is possible to rectify the flowing forms of a forward and reverse two-way fluid, ideal flowing form of the fluid can be achieved in the measurement area regardless of a forward or reverse flowing direction.