content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <headerData>
  <submissionType>144</submissionType>
  <filerInfo>
  <filer>
  <filerCredentials>
  <cik>0001979753</cik>
  <ccc>XXXXXXXX</ccc>
  </filerCredentials>
  </filer>
  <liveTestFlag>LIVE</liveTestFlag>
  </filerInfo>
  </headerData>
  <formData>
  <issuerInfo>
  <issuerCik>0001743102</issuerCik>
  <issuerName>Jiayin Group Inc.</issuerName>
  <secFileNumber>001-38806</secFileNumber>
  <issuerAddress>
  <street1 xmlns="http://www.sec.gov/edgar/common">18th Fl, Bldg No 1, Youyou Century Plaza</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">428 South Yanggao Road</street2>
  <city xmlns="http://www.sec.gov/edgar/common">Shanghai</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">F4</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">200122</zipCode>
  </issuerAddress>
  <issuerContactPhone>86-21-6190-6826</issuerContactPhone>
  <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Wang, Libin</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
  <relationshipsToIssuer>
  <relationshipToIssuer>Officer</relationshipToIssuer>
  <relationshipToIssuer>Director</relationshipToIssuer>
  </relationshipsToIssuer>
  </issuerInfo>
  <securitiesInformation>
  <securitiesClassTitle>ADS</securitiesClassTitle>
  <brokerOrMarketmakerDetails>
  <name>Futu  Securities International (Hong Kong) Ltd.</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">18 Bonham Strand West, Sheung Wan</street1>
  <city xmlns="http://www.sec.gov/edgar/common">Hong Kong</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">F4</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">999077</zipCode>
  </address>
  </brokerOrMarketmakerDetails>
  <noOfUnitsSold>118560</noOfUnitsSold>
  <aggregateMarketValue>671049.6</aggregateMarketValue>
  <noOfUnitsOutstanding>108100000</noOfUnitsOutstanding>
  <approxSaleDate>09/04/2023</approxSaleDate>
  <securitiesExchangeName>NASDAQ</securitiesExchangeName>
  </securitiesInformation>
  <securitiesToBeSold>
  <securitiesClassTitle>Ordinary Shares represented by ADS</securitiesClassTitle>
  <acquiredDate>09/01/2019</acquiredDate>
  <natureOfAcquisitionTransaction>Stock Option exercised and stock grants vested under Share Incentive Plan of 2019</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Jiayin Group Inc.</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>94000</amountOfSecuritiesAcquired>
  <paymentDate>09/01/2019</paymentDate>
  <natureOfPayment>Stock Option exercise cost</natureOfPayment>
  </securitiesToBeSold>
  <securitiesToBeSold>
  <securitiesClassTitle>Ordinary Shares represented by ADS</securitiesClassTitle>
  <acquiredDate>12/01/2022</acquiredDate>
  <natureOfAcquisitionTransaction>RSU exercised and stock grants vested under Share Incentive Plan of 2019</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Jiayin Group Inc.</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>840000</amountOfSecuritiesAcquired>
  <paymentDate>12/01/2022</paymentDate>
  <natureOfPayment>RSU exercise cost</natureOfPayment>
  </securitiesToBeSold>
  <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>Wang Libin</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">Shanghai Pudong</street1>
  <city xmlns="http://www.sec.gov/edgar/common">Shanghai</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">F4</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">200120</zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>ADS</securitiesClassTitle>
  <saleDate>06/16/2023</saleDate>
  <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
  <grossProceeds>23360</grossProceeds>
  </securitiesSoldInPast3Months>
  <noticeSignature>
  <noticeDate>08/31/2023</noticeDate>
  <signature>/s/ Libin Wang</signature>
  </noticeSignature>
  </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4113}]
text: 144
  0001979753
  XXXXXXXX
  LIVE
  0001743102
  Jiayin Group Inc.
  001-38806
  18th Fl, Bldg No 1, Youyou Century Plaza
  428 South Yanggao Road
  Shanghai
  F4
  200122
  86-21-6190-6826
  Wang, Libin
  Officer
  Director
  ADS
  Futu  Securities International (Hong Kong) Ltd.
  18 Bonham Strand West, Sheung Wan
  Hong Kong
  F4
  999077
  118560
  671049.6
  108100000
  09/04/2023
  NASDAQ
  Ordinary Shares represented by ADS
  09/01/2019
  Stock Option exercised and stock grants vested under Share Incentive Plan of 2019
  Jiayin Group Inc.
  N
  94000
  09/01/2019
  Stock Option exercise cost
  Ordinary Shares represented by ADS
  12/01/2022
  RSU exercised and stock grants vested under Share Incentive Plan of 2019
  Jiayin Group Inc.
  N
  840000
  12/01/2022
  RSU exercise cost
  N
  Wang Libin
  Shanghai Pudong
  Shanghai
  F4
  200120
  ADS
  06/16/2023
  4000
  23360
  08/31/2023
  /s/ Libin Wang