This　paper　proposes　a　novel　method　to　generate　a　three-dimensional　(3D)　quasi-spherical　focal　point　with　high　longitudinal　and　transverse　resolution　in　a　4Pi　focusing　system　based　on　the　radiation　pattern　of　the　orthogonally　superimposed　dipole　antenna.　In　this　paper,　we　present　generated　3D　quasi-spherical　multi-focus　arrays　that　are　controllable　and　uniformly　distributed　and　optical　rings　from　the　radiation　patterns　of　antenna　arrays　in　different　configurations.　The　results　showed　that　the　generated　focal　point　is　smaller　longitudinally　(0.31λ)　than　transversely　(0.41λ).　This　focal　point　has　the　smallest　volume　(∼0.0273λ　3)　found.　Moreover,　it　is　highly　homogeneous　and　has　a　small　side　lobe.　The　polarization　at　the　center　of　the　focal　point　is　purely　circular.　The　resulting　3D　focal　fields　can　be　easily　tailored　by　adjusting　the　modulation　parameters　of　the　orthogonally　superimposed　dipole　arrays.　Manipulating　3D　optical　focal　fields　with　pre-defined　characteristics　of　quasi-spherical　focal　points　has　a　high　degree　of　freedom.　Many　potential　applications　exist　in　arbitrarily　oriented　particle　capture　and　guidance,　micromanipulation,　optical　capture,　and　3D　optical　data　storage.　©　2023　IOP　Publishing　Ltd.