Present　three-dimensional　(3D)　display　systems　based　on　integral　imaging　have　small　field　of　view　and　low　resolution　of　reconstructed　images.　To　overcome　these　limitations,　a　flexible　microlens　array　structure　with　different　numerical　apertures　suitable　for　curved　integral　imaging　3D　display　is　designed　and　successfully　built　on　curved　screen.　The　optical　simulation　software　of　Trace　Pro　is　used　to　establish　a　curved　integral　imaging　3D　display　system　model.　Further,　the　influence　of　the　numerical　aperture　of　the　microlens　on　the　reconstruction　performance　of　the　curved　integral　imaging　3D　display　system　is　investigated.　The　results　show　that　for　microlens　with　a　constant　size　and　thickness,　the　larger　the　numerical　aperture,　the　better　the　quality　of　the　reconstructed　image　and　larger　the　field　of　view.　However,　if　the　numerical　aperture　of　the　flexible　microlens　array　is　0.376,　the　reconstructed　image　will　have　a　higher　resolution.　Moreover,　when　the　field　of　view　reaches　60°,　the　reconstructed　image　is　still　clear.　For　simulation　verification,　flexible　microlens　arrays　with　different　numerical　apertures　are　prepared　and　a　prototype　of　the　curved　integral　imaging　system　is　constructed.　The　experimental　results　are　consistent　with　the　simulation　results.　©　2022,　Chinese　Lasers　Press.　All　right　reserved.