Anodized　TiO2　nanotube　arrays　(TiO2　NTs)　have　been　widely　studied　in　energy　storage　devices　due　to　their　unique　morphologies　and　stable　physicochemical　properties.　However,　there　were　little　effective　methods　to　measure　the　exact　mass　loading　of　TiO2　NTs,　and　less　attentionwas　paid　to　the　correlation　between　the　structure　of　TiO2　NTs　and　their　mass　loading,　which　directly　affected　Li+　insertion/extraction　performances.　Herein,　we　design　an　ICP-weighing　method　to　easily　determine　the　mass　loading　of　TiO2　NTs　via　tracing　the　Ti　element　in　the　electrolyte　and　the　mass　change　of　Ti　foil,　and　study　the　influence　of　TiO2　NTs＇　mass　loading　on　the　electrochemical　performance.　After　optimization,　40　V　sample　presents　high　capacity　and　stability,　with　a　reasonable　TiO2　compact　layer　mass　ratio　(m(TiO2　compact　layer)/(mTiO2)　NTs　approximate　to　0.14)　and　wall　thickness　of　21.44　nm.　This　new　strategy　is　also　adaptable　for　other　anodized　valve　metals＇　(Ta,　Al,　Zr　foil/mesh/wire　etc.)　mass　determination　(C)　2018　Elsevier　B.V.　All　rights　reserved.