Abstract: The TERCOM technology is fast in the marine geomagnetic navigation matching navigation but its accuracy is lower,as well as ICCP technology has better accuracy,but its navigation speed is slower.In order to solve the present problem,we design a new method,which is based on the integration of TERCOM and ICCP technology.Then,we analyze the rough matching algorithm and its performance,and study the accurate matching algorithm by the improved ICCP matching algorithm.Finally,we solved the problem that the traditional matching algorithms do not have the performance in accuracy,speed and completeness at the same time.After an experiment in Bohai Bay,the accuracy and feasibility of this new algorithm are verified better.