The invention discloses an oil conveying pipeline for detection and belongs to the technical field of oil recovery. The oil conveying pipeline for detection comprises a conventional oil conveying pipeline and a detection pipeline; the conventional oil conveying pipeline and the detection pipeline are connected with each other through a three-way valve; the first end of the three-way valve is connected with an oil outlet of an oil pipe; the second end of the three-way valve is connected with the detection pipeline; the third end of the three-way valve is connected with the conventional oil conveying pipeline; the oil outlet of the oil pipe can be communicated with the detection pipeline only or connected with the conventional oil conveying pipeline only under the effect of the three-way valve, and the connection portion of the second end of the three-way valve and the detection pipeline is further provided with a valve; and the three-way valve is provided with two rotation positions bytaking a horizontal direction located by the conventional oil conveying pipeline as an axis, one position is to enable the detection pipeline to be located in a horizontal plane, and the other position is to enable the detection pipeline to be perpendicular to the horizontal plane. The oil conveying pipeline for detection is used for an oil well oil outlet speed detection device and can realizes the technical purpose of detecting oil well oil outlet speed by matching with an oil well oil outlet speed detection method.