According to the consecutive berth allocation algorithm of container terminals in the traditional serial environment, the efficiency of the algorithm is significantly reduced and the resource consumption is greatly increased when the number of ships greater than seven. The paper designs the overall system architecture and software architecture of the continuous berth allocation system of container terminals for the first time based on the distributed environment; puts forward the development environment construction of the continuous berth allocation system of container terminals based on the Hadoop platform, its component design and deployment as well as the key techniques of improved continuous berth allocation algorithm in distributed environment based on MapReduce. In the end, the continuous berth allocation system of container terminals in distributed environment is realized. The experimental results show that the system can effectively improve the efficiency of the continuous berth allocation.