A double-blade catamaran design scheme for maritime rescue is proposed. The catamaran combines rescue and driving. It has the advantages of high speed, good stability, and flexible operation. The catamaran uses electric propulsion to sail and the pollution to the ocean during the process is small. It has outstanding navigation performance such as straight travel, obstacle avoidance, curve driving, and steering. The catamaran rescue ship has complete capabilities on patrolling, searching, and rescuing, and can effectively rescue overboard personnel, and is suitable for security inspections in offshore rescue areas such as scenic spots and playgrounds, and has strong emergency rescue capabilities for emergencies.