The　tremendous　amount　of　end-of-life　liquid　crystal　displays　(LCDs)　has　become　one　of　the　prominent　sources　of　waste　electrical　and　electronic　equipment　(WEEE)　in　recent　years.　Despite　the　necessity　of　safe　treatment,　recycling　indium　is　also　a　focus　of　waste　LCD　treatment　because　of　the　scarcity　of　indium.　Based　on　the　analyses　of　the　structure　of　Indium　Tin　Oxide　(ITO)　glass,　crushing　is　demonstrated　to　be　not　required.　In　the　present　research,　a　complete　non-crushing　leaching　method　was　firstly　adopted　to　recycle　indium　from　waste　LCDs,　and　the　ultrasonic　waves　was　applied　in　the　leaching　process.　The　results　demonstrated　that　indium　can　be　leached　efficiently　with　even　a　low　concentration　of　chloride　acid　(HCI)　without　extra　heating.　About　96.80%　can　be　recovered　in　60　mins,　when　the　ITO　glass　was　leached　by　0.8　M　HCI　with　an　enhancement　of　300　W　ultrasonic　waves.　The　indium　leaching　process　is　abridged　free　from　crushing,　and　proves　to　be　of　higher　efficiency.　In　addition,　the　ultrasonic　wave　influence　on　leaching　process　was　also　explained　combing　with　micron-scale　structure　of　ITO　glass.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.