The　construction　of　stable　hydrophobic　surfaces　has　increasingly　gained　attention　owing　to　its　wide　range　of　potential　applications.　However,　these　surfaces　may　become　wet　and　lose　their　slip　effect　owing　to　insufficient　hydrophobic　stability.　Pillars　with　a　mushroom-shaped　tip　are　believed　to　enhance　hydrophobicity　stability.　This　work　presents　a　facile　method　of　manufacturing　mushroom-shaped　structures,　where,　compared　with　the　previously　used　method,　the　modulation　of　the　cap　thickness,　cap　diameter,　and　stem　height　of　the　structures　is　more　convenient.　The　effects　of　the　development　time　on　the　cap　diameter　and　overhanging　angle　are　investigated　and　well-defined　mushroom-shaped　structures　are　demonstrated.　The　effect　of　the　microstructure　geometry　on　the　contact　state　of　a　droplet　is　predicted　by　taking　an　energy　minimization　approach　and　is　experimentally　validated　with　nonvolatile　ultraviolet-curable　polymer　with　a　low　surface　tension　by　inspecting　the　profiles　of　liquid-vapor　interface　deformation　and　tracking　the　trace　of　the　receding　contact　line　after　exposure　to　ultraviolet　light.　Theoretical　and　experimental　results　show　that,　compared　with　regular　pillar　arrays　having　a　vertical　sidewall,　the　mushroom-like　structures　can　effectively　enhance　hydrophobic　stability.　The　proposed　manufacturing　method　will　be　useful　for　fabricating　robust　hydrophobic　surfaces　in　a　cost-effective　and　convenient　manner.　(C)　2017　Author(s).