With　the　development　of　intelligent　algorithm,　GA　and　PSO　have　become　the　hot　spot　for　the　study　on　multi-objective　optimization　in　recently　years.　Information　sharing　is　the　core　of　PSO　algorithm,　Comparing　with　GA,　PSO　algorithm　has　less　variables　to　adjust　and　is　easy　to　achieve,　so　it　is　widely　used　in　engineering.　This　paper　focus　on　the　comparation　on　several　PSO　algorithm　and　introduce　a　kind　of　PSO　algorithm　that　is　better　in　performance　than　others