content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001770310</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000927003</issuerCik>
        <issuerName>ADVANCED ENERGY INDUSTRIES INC</issuerName>
        <secFileNumber>000-26966</secFileNumber>
        <issuerAddress>
          <com:street1>ATTN:  PAUL OLDHAM</com:street1>
          <com:street2>1595 WYNKOOP ST, SUITE 800</com:street2>
          <com:city>DENVER</com:city>
          <com:stateOrCountry>CO</com:stateOrCountry>
          <com:zipCode>80202</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>9704076626</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DelSanto Anne</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>240</noOfUnitsSold>
        <aggregateMarketValue>34383.60</aggregateMarketValue>
        <noOfUnitsOutstanding>37655384</noOfUnitsOutstanding>
        <approxSaleDate>07/15/2025</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/06/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Vested Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>AEIS</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>240</amountOfSecuritiesAcquired>
        <paymentDate>05/06/2023</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Anne DelSanto c/o ADVANCED ENERGY INDUSTRIES INC</name>
          <address>
            <com:street1>1595 WYNKOOP ST, SUITE 800</com:street1>
            <com:city>Denver </com:city>
            <com:stateOrCountry>CO</com:stateOrCountry>
            <com:zipCode>80202</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock	</securitiesClassTitle>
        <saleDate>06/16/2025</saleDate>
        <amountOfSecuritiesSold>240</amountOfSecuritiesSold>
        <grossProceeds>29853.60</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>shares are being sold from THE DELSANTO FAMILY TRUST U/A 2/16/18</remarks>
      <noticeSignature>
        <noticeDate>07/15/2025</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>03/13/2025</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Anne DelSanto</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3702}]
text: 144
  0001770310
  XXXXXXXX
  LIVE
  0000927003
  ADVANCED ENERGY INDUSTRIES INC
  000-26966
  ATTN:  PAUL OLDHAM
  1595 WYNKOOP ST, SUITE 800
  DENVER
  CO
  80202
  9704076626
  DelSanto Anne
  Director
  Common
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  240
  34383.60
  37655384
  07/15/2025
  NASDAQ
  Common
  05/06/2023
  Vested Compensation
  AEIS
  N
  240
  05/06/2023
  N/A
  N
  Anne DelSanto c/o ADVANCED ENERGY INDUSTRIES INC
  1595 WYNKOOP ST, SUITE 800
  Denver
  CO
  80202
  Common Stock
  06/16/2025
  240
  29853.60
  shares are being sold from THE DELSANTO FAMILY TRUST U/A 2/16/18
  07/15/2025
  03/13/2025
  /s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Anne DelSanto