The invention provides a mobile railway station, a matched rail network and a combination system of the two, and belongs to the field of railway track traffic and city track traffic. The combination system deeply integrates the railway track traffic with the city track traffic, a fixed railway station is changed into the mobile railway station, passengers can get on and get off a train during driving, the train operation efficiency is greatly improved, about 400 billions of occupied train fixed assets are saved, the coverage scope and the stop frequency of the train are also greatly increased, the waiting time of the passengers is shortened, at the same time, railway passenger flow is effectively evacuated through deep integration of the mobile railway station and the city track traffic, congestion caused by the railway passenger flow to city traffic is mitigated, the requirement of the passengers for taking the train at nearby places is greatly satisfied, the railway service quality is improved, the market share of railway transport is increased, harm caused by road transport to environment is reduced, and the social and economic benefits are great.