It　is　challenging　for　the　existing　three-dimensional　(3D)　printing　techniques　to　fabricate　high-resolution　3D　microstructures　with　low　costs　and　high　efficiency.　In　this　work　we　present　a　solvent-based　electrohydrodynamic　3D　printing　technique　that　allows　fabrication　of　microscale　structures　like　single　walls,　crossed　walls,　lattice　and　concentric　circles.　Process　parameters　were　optimized　to　deposit　tiny　3D　patterns　with　a　wall　width　smaller　than　10　mu　m　and　a　high　aspect　ratio　of　about　60.　Tight　bonding　among　neighbour　layers　could　be　achieved　with　a　smooth　lateral　surface.　In　comparison　with　the　existing　microscale　3D　printing　techniques,　the　presented　method　is　low-cost,　highly　efficient　and　applicable　to　multiple　polymers.　It　is　envisioned　that　this　simple　microscale　3D　printing　strategy　might　provide　an　alternative　and　innovative　way　for　application　in　MEMS,　biosensor　and　flexible　electronics.