With　more　and　more　applications,　the　mechanical　strength　of　graphene　paper　(GP)　has　attracted　significant　attention　in　recent　years.　In　this　report,　GPs　were　prepared　by　flow-induced　filtration　of　electrochemical　exfoliated　graphene　sheets.　By　adjusting　the　concentration　of　solution,　we　found　graphene　sheets　fabricated　in　0.1　M　K2SO4　have　the　thinnest　average　thickness.　And　by　uniaxial　in-plane　tensile　tests　operated　on　a　self-developed　in　situ　scanning　electron　microscopy　(SEM)　tensile　stage,　the　corresponding　GP　has　the　best　fracture　strength　of　192　MPa.　This　is　due　to　that　the　thickness　decrease　of　exfoliated　graphene　will　increase　the　quantity　of　interlayer　crosslinks,　thus　improving　the　mechanical　properties　of　GPs.　This　research　may　open　a　new　way　to　obtain　high-strength　GPs　for　applications.