Three　types　of　nanodots　were　deposited　on　the　surface　of　single　crystal　LaAlO3(LAO)　substrates　before　preparing　YBCO　films.　By　comparing　with　different　interfacial　nanodots,　it　was　found　that　ZrO2　and　Y0.15Zr0.85O2　(YSZ)　interfacial　nanodots　have　a　similar　size,　shape,　and　density　as　well　as　distribution　so　that　they　have　a　same　and　weaker　effect　on　the　pinning　ability　of　the　YBCO　film.　However,　CeO2/ZrO2　=　0.15/0.85　(CZO)　has　a　different　character　with　a　small　size,　large　density　and　uniform　distribution.　Especially,　CZO　interfacial　nanodots　are　the　most　effective　to　enhance　J(c)　values　of　YBCO　films　in　applied　magnetic　field.　At　77　K　and　3　T,　the　J(c)　value　of　YBCO　film　with　CZO　interfacial　nanodots　decorating　is　12　times　of　that　of　pure　YBCO.　A　further　research　indicated　that　the　high　performance　was　due　to　multiphase.　Besides,　the　advantages　of　multiphase　nanoparticles　are　more　prominent　as　increasing　the　applied　magnetic　field　and　temperature.　(C)　2013　Elsevier　B.V.　All　rights　reserved.