In this paper, the recent development of the self-assembly of amphiphilic block copolymers in solutions were reviewed, with emphasis on new morphologyies of aggregates,such as rod, wormlike, vesicle,onion and solid onion etc. At the same time, the potential applications of the self-assembly of amphiphilic block copolymers in solutions, to light and e-lectricity ,the release of pharmacies,gene enginerring were introduced. The preparation methods of aggregates were also reviewed.