Polycrystalline　La0.93Sb0.07MnO3　ceramics　were　synthesized　using　solid-state　reaction　method.　The　samples　were　sintered　at　different　temperatures　ranging　from　1100　degrees　C　to　1200　degrees　C.　It　is　observed　that　microstructural,　transport　and　magnetic　properties　of　La0.93Sb0.07MnO3　compounds　strongly　depend　on　sintering　temperatures　(T-S).　With　T-S　increasing,　the　degree　of　lattice　distortion　has　been　weakened,　the　grain　size　has　become　larger　and　grain　boundaries　have　decreased.　Furthermore,　the　resistivity　was　reduced,　and　metal-insulator　transition　temperature　was　enhanced;　the　saturation　magnetization　per　unit　mass　has　decreased　with　T-S　increasing.　These　effects　of　different　T-S　on　physical　properties　can　be　explained　by　the　structure　distortion　and　grain　boundary　contributions　for　La0.93Sb0.07MnO3　compounds.