YBa2Cu3OT7-x　films　have　been　deposited　using　spray　pyrolysis　on　(100)　SrTiO3　substrate.　An　extended　study　on　the　optimization　of　the　composition,　carrying　gas　flow,　deposition　temperature　as　well　as　annealing　time　was　performed.　It　was　found　that　these　parameters　are　strongly　correlated　and　affect　the　morphology,　orientation　and　superconducting　properties　of　the　YBCO　films.　As　grown　films　already　exhibit　J(c)　values　of　A/cm(2),　thus　indicating　that　the　correct　structure　is　already　formed　during　deposition.　It　was　found　that　the　temperature　gradient　in　the　pyrolysis　zone　played　a　fundamental　role　during　the　deposition.　After　modification　of　this　heat　gradient　by　adding　a　metallic　susceptor,　a　noticeable　improvement　in　the　properties　of　the　films　was　obtained.　An　in-plane　orientation　FWHM　value　of　0.701　was　measured　from　the　(102)　pole　figure.　The　films　exhibited　a　T-c　onset　of　91　K　(Delta　T-c　=　1.5　K),　while　the　J(c)　value　at　77　K　in　self-field　approached　101　A/cm(2).　Based　on　an　assumed　typical　intragranular　critical　current　density,　we　found　a　40　x　40　mu　m　area　in　our　best　film　where　the　assumed　critical　current　density　is　well　above　10(6)　A/cm(2).