Arrays　of　flexible　organic　thin-film　transistors　(OTFTs)　are　the　prerequisite　to　realize　commercialization　of　flexible　electronics.　However,　photolithography　and　print　techniques　are　uneasy　to　combine　high　performance,　high　integration　density,　and　compatibility　with　flexible　substrates　to　fabricate　OTFT　arrays.　In　this　work,　OTFT　arrays　with　high　resolution,　flexibility　and　process　convenience　are　patterned　by　femtosecond　laser　(fs-laser).　1　cm2　of　area　can　accommodate　up　to　6250　transistors　with　sharp　edges　and　short　channel　lengths　by　selective　processing.　Furthermore,　micron-scale　resolution　flexible　image　sensor　with　integration　potential　were　verified.　Hence,　these　results　will　impel　the　development　of　flexible　wearable　electronic　devices　in　the　future.　0741-3106　©　2021　IEEE.　Personal　use　is　permitted,　but　republication/redistribution　requires　IEEE　permission.　See　https://www.ieee.org/publications/rights/index.html　for　more　information.