Pedestrian　evacuation　at　the　gate　of　primary　school　after　school　is　always　a　tricky　question　bothering　us.　In　order　to　improve　the　safety　and　efficiency　of　pedestrian　evacuation　at　the　gate　of　primary　school,　adult-child　matching　behavior　after　school　is　analyzed.　We　propose　four　adult-child　matching　strategies　considering　order　or　random　of　adults　and　children　in　the　matching　process.　Fusing　the　matching　strategy　into　a　cellular　automata　(CA)-based　pedestrian　simulation　model　and　taking　the　Linyi　No.　40　middle　school,　China　as　the　case　study,　the　adult-child　matching　behavior　is　simulated　on　the　platform　of　MATLAB　software.　The　simulation　results　indicate　that　evacuation　efficiency　of　the　strategy　(adults　are　orderly　distributed　in　the　first　waiting　area　and　children　are　orderly　queuing　up)　reaches　the　maximum　value　among　the　four　strategies.　Effective　matching　strategies　could　reduce　pedestrian　conflicts.　The　randomly　children　and　randomly　adults　are　all　the　negative　impacts　for　evacuation.　Orderly　evacuation　process　could　reduce　pedestrian　conflicts.　Compared　with　the　randomly　children,　the　effect　on　evacuation　efficiency　of　the　randomly　adults　is　larger.　A　reasonable　number　of　evacuated　pedestrians　at　a　time　could　improve　the　whole　evacuation　efficiency,　and　we　advise　the　Linyi　No.　40　middle　school　to　evacuate　three　classes　at　a　time.