Due　to　the　existence　of　the　converging　intersections　and　diverging　intersections,　the　urban　underground　road　of　multi-point　entry　and　exit　can　show　complicated　forms　in　the　air　flow　rate　and　smoke　movement　in　a　comparison　with　the　underground　road　with　single-point　entry　and　exit.　In　this　paper,　the　strategies　of　original　ventilating　and　exhausting　smoke　of　a　certain　urban　underground　of　multi-point　entry　and　exit　road　were　simulated　and　evaluated　by　using　ventilation　simulation　software　IDA　RTV.　The　partial　ventilation　scheme　where　the　number　of　fans　was　reduced　was　analyzed.　The　running　strategy　of　fans　in　the　tunnel　under　three　conditions　was　determined.　And　the　influence　of　the　fans　in　ramp　tunnel　on　the　wind　speed　of　main　road　was　studied.　Results　indicate　that　when　exhausting　smoke　in　branch　section,　The　mode　of　operation　where　jet　fan　in　the　section　is　fully　operated　is　unreasonable,　which　would　lead　to　excessive　wind　speed　downstream　of　the　shaft.　The　running　of　the　ramp　fan　has　a　certain　influence　on　the　wind　speed　of　the　main　tunnel.　In　the　ventilation　and　smoke　control　design,　the　ramp　position　and　the　operating　mode　of　the　ramp　fan　should　be　fully　considered.　Operating　fans　downstream　of　the　shaft　reversely　can　exhaust　smoke　more　effectively.　The　results　provide　the　theoretical　basis　for　the　ventilation　and　exhaust　design　of　other　complicated　underground　roads.　©　2017　The　Author(s).