Based on urban heating situation in north, economic evaluation for different heating modes was analyzed in the presented work. Firstly through collecting and analyzing the urban heating system data, initial investment and operation cost were deduced for several main heating modes. And only fuel cost was taken into account in operation fuel cost for simplicity. Secondly economic evaluation for whole energy heating modes was done and compared. Finally the best heating mode was found which can be a reference for decision on urban heating mode in north.