Urban railways play a huge role in urban transport. Over the past years, traffic congestion in two major cities of Vietnam, Hanoi and Ho Chi Minh City has often occurred, adversely affecting the development of the two cities in particular and of the whole country in general. This study focuses on analyzing the urban railway connection when completed and put into use, the difficulties that will be encountered at the same time as new opportunities are opened and its impact on urban space of the two largest cities in Vietnam are Hanoi and Ho Chi Minh City. However, due to the condition of this time, the study focused only on the urban railway of Hanoi - the capital of Vietnam.