Microwave　dielectric　ceramics　of　CaLa4Ti4O15　were　prepared　by　the　solid-state　reaction　method.　The　influence　of　the　calcining　temperature　on　the　sintering　behavior　and　microwave　dielectric　properties　was　investigated.　For　the　specimen　calcined　at　1200°C,　CaTiO3,　La2Ti2O7　and　La2TiO5　mixed　phases　were　observed　in　addition　to　the　CaLa4Ti4O15　phase,　while　the　hexagonal　perovskite　single　phase　was　achieved　for　the　CaLa4Ti4O15　powders　calcined　at　1300°C　or　1400°C.　CaLa4Ti4O15　ceramics　were　sintered　well　with　high　relative　density　of　about　97%.　On　the　other　hand,　the　ceramics　had　a　high　mechanical　quality　factor　plus　resonant　frequency　(Q　×　f)　value　and　near　zero　temperature　coefficient　of　resonant　frequency　(τf).　The　CaLa4Ti4O15　ceramics　sintered　at　1550°C　exhibited　excellent　microwave　dielectric　properties　as　follows:　relative　dielectric　constant　εr　=45.1,　Q　×　f　=46　087　GHz,　τf　=　-14.1　×　10-6/°C　and　εr　=45.9,　Q　×　f　=48　871　GHz,　τf　=　-14.4　×　10-6/°C　for　the　specimens　calcined　at　1200°C　and　1300°C,　respectively.