The utility model relates to an optimization system for vacuum pump shaft seal water of a ceramic filter. The optimization system comprises the ceramic filter (1), a concentration tank (2), a sewage tank (3), a sewage pump (4), a process sedimentation tank (5), a collection tank (6), a filter liquid tank (7), a collection pump (8), a gravity type filter (9), a clean water tank (10), a first clean water pump (11), a high-level water tank (12) and a ceramic filter backwash water pipeline (13), wherein the clean water in the clean water tank (10) is pumped into the high-level water tank (12) through a first output pipeline and the first clean water pump (11), and the water in the high-level water tank (12) is used for backward washing the ceramic filter (1) through the ceramic filter backwash water pipeline (13); a second output pipeline of the clean water tank (10) is connected with one end of a vacuum pump shaft seal water pipeline (14), the other end of the vacuum pump shaft seal water pipeline (14) is directly connected with a vacuum pump of the ceramic filter (1), and a second clean water pump (16) is arranged on the second output pipeline.