Laser　sinter　technique　for　(Ta2O5)1-x　(TiO2)x　(x　is　0.3,　0.4　and　0.5,　respectively)　based　ceramics　was　briefly　introduced　in　this　paper.　Thermal　compensation　of　(Ta2O5)1-x　(TiO2)x　based　negative　temperature　coefficient　materials　could　be　allowed　by　combination　of　laser　sinter　and　annealing　in　oxygen,　which　tuned　their　dielectric　temperature　coefficient　nearly　to　zero.　Dielectric　properties　of　specimens　prepared　by　conventional　sintering,　laser　sintering　and　its　annealing　sample　in　oxygen　were　analyzed　by　X-ray　diffraction　(XRD)　and　scanning　electron　microscope　(SEM).　The　results　showed　that　thermal　compensation　of　the　negative　temperature　coefficient　materials　related　to　the　oxygen　defect,　and　led　to　the　change　of　their　temperature　coefficients.