Abstract: Since the development of Le'an Consistent Oil Fields, Dongxin-Shengli Oil Pipeline has been gathering flux oil from No. 2 Station and consistent oil from Le'an Station respectively and transporting the mixed oil to 101 tankfarms. The original condition has changed but the operational plan remains the same as before, thus resulting in great waste. Therefore, a new operational plan has got to be worked out. The following actions were taken, namely, analyzing the available hydraulic and thermal parameters, lowering the receiving tempertature indexes, adjusting the power of heaters at the No. 2 Station, doing the experiment of pump shutdown when flowrate changes etc. A new plan has been worked out: Changing the number of heaters and operating pumps for normal, high and low throughput according to different seasons, which has seen its good economic and social benefits.