The utility model discloses a solve the not enough of prior art, provide a parallel pulp conveying pipeline cathodic protection system, wait to protect pipeline (1) including positive pole bed (2), first power (3) and parallel and syntropy transport more than 2. Positive pole bed (2) communicate with the anodal of first power (3), respectively wait to protect pipeline (1) the parallelly connected back and the negative pole of first power (3) to feed through. It is used for monitoring pipe to say monitoring stake (4) of state to wait to protect to be equipped with on pipeline (1). Respectively wait to protect pipeline (1) to locate through the voltage -sharing circuit parallelly connectedly in monitoring stake (4). The utility model discloses can realize 2 parallel pipelines or multi -channel through the one set of cathodic protection system, effectual impressed current cathodic protection, installation, the maintenance cost of having practiced thrift equipment. The utility model discloses a whole story of pipeline end and each detect link of stake, use the voltage -sharing circuit to connect in parallel, voltage on balanced each pipeline has reduced pipeline enclosure stray current's quantity and intensity.