Previous　studies　have　demonstrated　that　visual　search　on　Web　pages　is　impacted　by　many　factors,　such　as　information　form　and　Webpage　layout.　However,　quantitative　research　about　the　impact　of　information　overload　for　visual　search　on　Web　pages　has　not　been　reported　yet.　This　study　quantitatively　investigates　users＇　visual　search　behavior　under　information　overload　on　Web　pages　using　eye-tracking.　Results　suggest　that　1)　under　information　overload　or　not,　users＇　visual　search　strategies　are　the　same　that　is　paying　more　attention　to　pictures　and　peripheral　areas;　2)　Information　overload　significantly　increases　the　visual　search　time,　which　means　the　decrease　of　visual　search　efficiency;　and　3)　Under　information　overload,　users　are　more　likely　to　decrease　parallel　processing　and　increase　serial　processing　to　improve　the　visual　search　efficiency.