Abstract: The output of pipelines in Northeast China is reduced year by year. The determination for safe and economic operation schemes of the Northeast pipelines in future seriously depends on the variations of wax deposition of Daqing crude oil in Northeast pipelines under outputs reductions. Based on the achievements from the previous studies on wax deposition of Daqing crude in the Northeast pipelines and the forecast operation plans, forecast and analysis for wax deposition in the Northeast pipelines in future are implemented in this paper, and some significant conclusions and suggestions are given.