The utility model provides a crude oil conveyor, it includes: with the production tree that the oil pipe of oil well is connected, the production tree has two at least transfer lines, with the first pipeline of at least one transfer line intercommunication in at least two transfer lines, the other end of first pipeline is connected to mixes the liquid source, mixes the liquid that the liquid source can have predetermined temperature and/or predetermined viscosity to the input of first pipeline, with the second pipeline of all the other transfer lines intercommunication in at least two transfer lines, the other end of second pipeline can be connected to the station of recovering the oil, third pipeline with first pipeline and second pipeline intercommunication, wherein, the tie point of third pipeline and first pipeline and second pipeline is located respectively between the both ends of first pipeline and second pipeline, liquid in mixing liquid source input to first pipeline can get into the second pipeline through the third pipeline, and/or, in the transfer line with first pipeline intercommunication gets into the oil well. This application embodiment can effectively reduce the pipeline of carrying crude oil in ground and take place to freeze stifled condition incidence.