Research conclusions： For integration of survey and design for these two projects, the construction of Line 3 of Shenzhen Metro should be taken as the main control sector, the realization of main functions of National Highway G205 as main road in Shenzhen should be taken as the basic goal, the differences between the design principles and standards for the highway and the metro should be fully considered and the principle of integration of survey and design should be insisted in to try to solve the contradictions as much as possible and achieve the goal of "seeking common points while reserving difference and coordinating as a whole". Based on them mentioned above, the researches are done on the following areas: survey, investigation, alignment, interchange overpass design, water supp ly and drainage system, fire protection and disaster prevention system, power supply and lighting system and communication equipments, for presenting rational solutions as the guidance to integration of survey and design.