The integrated transportation of offshore wind turbine (OWT) and bucket foundation (BF) has obvious advantages in the application of shallow sea (<20m) wind farm engineering. However, this approach will face more challenges when it is applied to distant and deep-sea wind farms. In this study, a U and K shaped assembled platform (U&KSAP) is proposed and introduced for the first time, which is used to transport and install the OWT and BF (OWT&BF) in deeper and farther offshore wind farms. Firstly, the integrated transportation and installation method of OWT&BF based on the novel U&KSAP is discussed. The monitoring and brief analysis of U&KSAP and BF for the first sea transportation was carried out, and some key parameters were obtained. Secondly, the integrated transportation experiments of U&KSAP and OWT&BF were carried out in a towing tank. Finally, the main factors affecting the motion behavior of the integrated transportation process were discussed. The experimental results show that the U&KSAP has good seakeeping and is capable of integrated transportation. During integrated transportation, the influence of towing speed on drag resistance is obvious. The motion behavior of OWT&BF and U&KSAP is more sensitive to wave height and period, especially near the resonant period. The increase in towing speed and the air pressure inside the BF can slightly reduce motion response. At the same time, certain control measures should be taken for the top wind turbine to reduce horizontal acceleration during integrated transportation.