琼州海峡隧道的修建不仅能满足海峡客货运量和国防的需要，而且建成后将会对海南的经济发展起到巨大的拉动作用。琼州海峡隧道前期工作十分紧迫，研究工作量巨大，技术复杂，难度大，所需的时间较长。在研究琼州海峡的气象、水文、地质条件等的基础上，对桥隧方案及隧道线位方案进行了初步比选分析，认为琼州海峡跨海工程宜隧不宜桥，并且Ⅱ线隧道线位方案较优，在对Ⅱ线线位浅埋隧道和深埋隧道的比较后认为浅埋隧道采用盾构法施工的方案较优。由于公路隧道存在诸多技术难题，以及工程造价和运营成本都很高，因此，把铁路隧道方案作为首选方案是可行的

The construction of the Qiongzhou strait tunnel will not only meet the requirements of the straits' passenger and cargo traffic,but also the needs of national defense, and the constructed tunnel will play a huge pulling role in Hainan´s economic development.Comparing with the similar projects abroad, the preliminary work of Qiongzhou strait tunnel was very urgent and needed a long time, because of enormous workload of research, complex technology and difficulties. Based on the study of meteorological, hydrological, geological data and other information of Qiongzhou strait tunnel, the bridge and tunnel schemes are simply compared, which indicate that the tunnel scheme is suitable, moreover, the shield tunnel scheme for line Ⅱ is better than others. After compared the shallow tunnel with deep tunnel schemes of line Ⅱ, the shallow tunnel using shield method scheme is proposed. As highway tunnel had many technical problems, and project costs and operating costs are very high, therefore, the railway tunnel plan as the preferred option is feasible, and cars could pass through the tunnel by shuttle trains.