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  <xs:element id="ctkb_OfficeFacilitiesAndEquipmentMember" abstract="true" name="OfficeFacilitiesAndEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ctkb_NumberOfOptionForLeaseRenewal" abstract="false" name="NumberOfOptionForLeaseRenewal" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ctkb_SubleaseIncomeLoss" abstract="false" name="SubleaseIncomeLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_OperatingCashOutflowsPaymentsOnOperatingLeases" abstract="false" name="OperatingCashOutflowsPaymentsOnOperatingLeases" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_RightOfUseAssetsObtainedInExchangeForNewLeaseObligationsAbstract" abstract="true" name="RightOfUseAssetsObtainedInExchangeForNewLeaseObligationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ctkb_RightOfUseAssetsObtainedInExchangeForNewLeaseObligations" abstract="false" name="RightOfUseAssetsObtainedInExchangeForNewLeaseObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_PurchaseObligationToBePaidAfterYearThree" abstract="false" name="PurchaseObligationToBePaidAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_CytekJapanMember" abstract="true" name="CytekJapanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ctkb_TOMYDigitalBiologyMember" abstract="true" name="TOMYDigitalBiologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="ctkb_NoncontrollingInterestInConsolidatedSubsidiary" abstract="false" name="NoncontrollingInterestInConsolidatedSubsidiary" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ctkb_CostOfGoodsSold" abstract="false" name="CostOfGoodsSold" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_AmortizationLicenseAndIPExpense" abstract="false" name="AmortizationLicenseAndIPExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_SellingAndMarketingExpenseExcludingShareBasedPaymentArrangementExpense" abstract="false" name="SellingAndMarketingExpenseExcludingShareBasedPaymentArrangementExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_MarketingExcludingShareBasedPaymentArrangementExpense" abstract="false" name="MarketingExcludingShareBasedPaymentArrangementExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_ResearchAndDevelopmentExpenseExcludingShareBasedPaymentArrangementExpense" abstract="false" name="ResearchAndDevelopmentExpenseExcludingShareBasedPaymentArrangementExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_GeneralAndAdministrativeExpenseExcludingShareBasedPaymentArrangementExpense" abstract="false" name="GeneralAndAdministrativeExpenseExcludingShareBasedPaymentArrangementExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ctkb_OtherMember" abstract="true" name="OtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
