The　YBCO　films　were　directly　deposited　on　cold-rolled　Ag　substrates　by　MOD　(metal-organic　deposition)　method.　The　formation　of　YBCO　phase　and　change　of　Ag　textures　were　studied　during　firing　precursor　films.　It　was　found　that　YBCO　phase　starts　to　be　formed　at　800°C　when　Ag　{110}<110>texture　(most　suitable　texture　for　YBCO　epitaxial　growth)　appears.　With　the　increase　of　firing　temperature,　pure　YBCO　phase　is　obtained　and　Ag　{110}<110>texture　gradually　becomes　stronger.　The　textures　of　both　{110}<110>texture　in　Ag　substrate　and　biaxial　orientation　in　YBCO　film　were　optimized　after　holding　the　film　at　900°C　for　30　minutes.　Finally,　the　YBCO　film　deposited　directly　on　cold　rolled　Ag　substrate　has　a　good　biaxial　texture,　a　smooth　and　dense　surface　as　well　as　high　critical　current　density　of　1.5×104A/cm　2.　The　results　show　that　cold-rolled　Ag　can　be　used　as　a　substrate　material　to　directly　deposit　YBCO　film　without　any　buffer　layers　by　MOD　method.　©　2008　IOP　Publishing　Ltd.