Towing the ultra large ships without power is one of the difficult and high-risk navigation operations in the Yangtze River and coastal waters, where the ship flow is large and navigation environment is complex. For towing operations, the environmental, hydrological and meteorological factors should be taken into consideration. Firstly, making detailed towing programs is essential. The towing programs include the towing routes choice, the arrangement of tugboats and ropes. Then the towing experiment on the ultra-deep drilling platform Sevan Driller are carried out, and the security measures and urgent arrangements in the special environment are analyzed in detail. Through the towing work of the ultra large cylindrical offshore drilling platform with unpowered devices, experience and guidance could be provided for the same types of ships in the future.