In　order　to　improve　the　economic　performance　of　incremental　distribution　network,　a　model　of　incremental　distribution　network　planning　with　energy　storage　is　proposed.　The　planning　model　of　the　distribution　network　is　built　from　the　perspective　of　distribution　network　investors.　The　uncertainty　of　distributed　generation　and　load　in　the　system　is　considered　with　the　constrains　of　power　flow　balance　and　operation　limits.　In　the　upper　level　of　the　proposed　planning　model,　the　location　and　capacity　of　the　energy　storage　system　is　optimized　to　minimize　the　total　investment　and　operation　cost.　While　in　the　lower　level,　the　charging　and　discharging　process　of　energy　storage　system　is　scheduled　to　maximize　the　operation　profit.　Finally,　the　proposed　incremental　distribution　network　planning　model　is　verified　in　a　19-bus　distribution　system.　©　2019　IEEE.