Taking for example the operation condition of Bengang 360 m² sinter machine waste heat power generation project, for which the directly-connected furnace hood type waste heat boiler and the turbo generator set are adopted for full utilization of waste heat resources. The energy saving and emission reduction effect of the project was evaluated through analysis of the contribution of the actual output of sintering waste heat utilization of the project to reducing sintering production cost and emission reduction during the project operation period from 2015 to 2017. The result shows that, the net output from energy recovery of the project during 2015 ~ 2017 is 12 760.5 t, 14 902 t, and 10 085 t respectively by being converted into output of standard coals, and the energy saving and emission reduction effect is remarkable, which can be introduced and referenced for the industry insiders.