The invention discloses an oil conveying pipeline heating device which comprises a device body. The device body comprises a stirring barrel body and a heating barrel body. An oil inlet pipe is arranged at the top of the stirring barrel body. Stirring rods are arranged in the stirring barrel body. A rotary motor is arranged on one side of the stirring barrel body. An inner barrel body is arranged in the heating barrel body. Multiple heating pipes are arranged in the inner barrel body. A flow guide plate is arranged on the outer side of each heating pipe. An insulating layer is arranged between the inner barrel body and the heating barrel body. An oil outlet pipe is arranged at the top of the heating barrel body. A thermometer is arranged on one side of the oil outlet pipe. A connecting box is arranged on one side of the heating barrel body. A connection hole is formed in the bottom of the connecting box. According to the device, the problems that in the existing petroleum transportation process, due to the fact that exploited petroleum is quite sticky, the petroleum usually needs to be lubricated after being heated so as to be transported conveniently, but due to the fact that the petroleum is too sticky, heating is not uniform, the heating effect is one-sided, and transport blocking is caused are solved.