Morphological Evolution and Motion of the Photospheric Sunspot Group in AR 5312

The morphology and evolutionary process of the active region AR 5312 are described in this paper. It is emphastically pointed out that(1) there is a long period δ-structure with the arrangement of the reversal of polarities in the active region and(2) the newly emerging flux and the rapid development of the sunspot motion have close relation to the eruption of a lot of flares in this region.