With　the　increasing　of　Battery　Electricity　Bus　(BEB),　the　orderly　charging　of　buses　becomes　more　and　more　important.　This　paper　formulates　a　battery　electric　bus　energy　consumption　model　based　on　characteristic　data,　and　proposes　a　simple　method　to　extract　the　characteristic　data　from　the　unordered　data.　A　simple　and　practical　BEB　charging　plan　schedule　optimization　model　based　on　BEB　fleet＇s　departure　plan　timetable　and　trip　electricity　consumption　estimation　is　developed.　Given　some　realistic　assumptions,　the　schedule　model　is　formulated　as　a　mixed　integer　linear　model.　The　objective　function　can　accurately　calculate　the　charging　cost　in　a　linear　manner.　Only　two　kinds　of　constraints　are　included　in　the　model,　they　can　ensure　each　BEB　journey　is　feasible.　The　real-world　numerical　tests　show　that:　in　the　simulation　cases,　the　average　relative　error　of　the　energy　consumption　model　is　7.5-9.2%　and　the　optimized　charging　plan　could　reduce　the　charging　cost　by　about　16%.