Research method: By analyzing still existing weaknesses after six large scale speed-up reconstructions of Zhengzhou-Wuhan section of Jing-Guang railway, such as inadequacy of the transport ability and lower train velocity, inappropriate transport quantity for developments and quality for the national economic markets, necessities of eliminating the only two remained velocity restrict segments are demonstrated. And through research into two engineering plans of reconstruction, the feasibilities of eliminating those two remained velocity restrict segments are discussed.