The establishment of geographic information system of special marine protection area is an important measure for the management and protection of special marine protection area．Data is all important part of geographic information system，and this article will detailedly illustrate the characteristics of remote sensing image data，vector data，video data，image data and text data of five different forms of data and its application and adding methods in the geographic information system of special marine protection area．Multi-source data makes the special marine protection area geographic information system function more perfectly．which provides convenience for the maintenance，management and display of special marine protection area．