Magic-Float Modular Jetty System has been developed and applied to numerous engineering constructions for more than 20 years up to today. Succeeding to Magic-Float Generation Ⅰ, which has been practiced and experienced in floating dock constructions many years, Magic-Float Generation Ⅱ, Ⅲ, IV, V, VI and VII were developed with new technique to improve the system structural and owned the system product’s utilization technical patent in many countries. Breaking through traditional floating construction, Magic-Float can be used more extensively, combined easy and fast. Magic-Float is a new technique of floating dock construction.