According to the experience in the design and construction application of small simple platform and “Sea-1” continental scientific drilling platform, the key structures of modular connection, lifting module and the pile shoe are designed for the multi-function geological survey platform in application. By the innovative design, the platform construction site limitation, transportation and convenient installation are solved and the efficiency of platform lifting and transportation are improved to adapt to the offshore engineering investigation project with short period and frequent relocation. Good application effects are received.