diff --git a/src/main/java/com/dl/officialsite/nft/bean/MemberNFTMintRecord.java b/src/main/java/com/dl/officialsite/nft/bean/MemberNFTMintRecord.java
new file mode 100644
index 00000000..0b78f561
--- /dev/null
+++ b/src/main/java/com/dl/officialsite/nft/bean/MemberNFTMintRecord.java
@@ -0,0 +1,65 @@
+package com.dl.officialsite.nft.bean;
+
+import com.dl.officialsite.nft.constant.ContractNameEnum;
+import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import lombok.ToString;
+import org.hibernate.annotations.DynamicUpdate;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EntityListeners;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import javax.persistence.UniqueConstraint;
+import javax.validation.constraints.NotNull;
+import java.io.Serializable;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+@ToString
+@EqualsAndHashCode(onlyExplicitlyIncluded = true)
+@EntityListeners(AuditingEntityListener.class)
+@Entity
+@DynamicUpdate
+@Table(name = "member_nft_mint_record", schema = "dl", uniqueConstraints = {
+    @UniqueConstraint(name = "unique_mint_record", columnNames = {
+        "address", "contractName", "chainId"
+    })
+})
+public class MemberNFTMintRecord implements Serializable {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(length = 42)
+    @NotNull
+    private String address;
+
+    @NotNull
+    @Column(length = 16)
+    @Enumerated(EnumType.STRING)
+    private ContractNameEnum contractName;
+
+    @Column(length = 32)
+    @NotNull
+    private String chainId;
+
+    private int rankValue = -1;
+
+    @CreatedDate
+    @Column(updatable = false)
+    private Long mintTime;
+}
diff --git a/src/main/java/com/dl/officialsite/nft/bean/MemberNFTMintRecordRepository.java b/src/main/java/com/dl/officialsite/nft/bean/MemberNFTMintRecordRepository.java
new file mode 100644
index 00000000..ad03fbf1
--- /dev/null
+++ b/src/main/java/com/dl/officialsite/nft/bean/MemberNFTMintRecordRepository.java
@@ -0,0 +1,18 @@
+package com.dl.officialsite.nft.bean;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.Optional;
+
+public interface MemberNFTMintRecordRepository
+    extends JpaRepository<MemberNFTMintRecord, Long>, JpaSpecificationExecutor<MemberNFTMintRecord> {
+
+    @Query(value = "select * from member_nft_mint_record where address =:address and contract_name=:contractName and " +
+        "chain_id=:chainId", nativeQuery = true)
+    Optional<MemberNFTMintRecord> findByAddressAndContractNameAndChainId(@Param("address") String address,
+                                                                         @Param("contractName") String contractName,
+                                                                         @Param("chainId") String chainId);
+}
diff --git a/src/main/java/com/dl/officialsite/nft/service/WarCraftContractService.java b/src/main/java/com/dl/officialsite/nft/service/WarCraftContractService.java
index 6da9c193..fa8d5354 100644
--- a/src/main/java/com/dl/officialsite/nft/service/WarCraftContractService.java
+++ b/src/main/java/com/dl/officialsite/nft/service/WarCraftContractService.java
@@ -1,6 +1,8 @@
 package com.dl.officialsite.nft.service;
 
 import com.dl.officialsite.common.base.BaseResponse;
+import com.dl.officialsite.nft.bean.MemberNFTMintRecord;
+import com.dl.officialsite.nft.bean.MemberNFTMintRecordRepository;
 import com.dl.officialsite.nft.config.ContractConfigService;
 import com.dl.officialsite.nft.constant.ContractNameEnum;
 import com.dl.officialsite.nft.contract.WarCraftContract;
@@ -16,6 +18,7 @@
 import org.web3j.tx.gas.StaticGasProvider;
 
 import java.math.BigInteger;
+import java.util.Optional;
 import java.util.concurrent.TimeUnit;
 
 @Slf4j
@@ -27,6 +30,8 @@ public class WarCraftContractService {
 
     @Autowired
     private ContractConfigService contractConfigService;
+    @Autowired
+    private MemberNFTMintRecordRepository memberNFTMintRecordRepository;
 
     public BaseResponse rank(String address, ContractNameEnum contractName, String chainId) {
         String contractAddress = this.contractConfigService.getContractAddressByName(contractName, chainId);
@@ -38,6 +43,13 @@ public BaseResponse rank(String address, ContractNameEnum contractName, String c
             return BaseResponse.failWithReason("1204", "Fetch rank failed, please try again later.");
         }
 
+        Optional<MemberNFTMintRecord> memberTaskRecordExists =
+            memberNFTMintRecordRepository.findByAddressAndContractNameAndChainId(address, contractName.name(), chainId);
+
+        if(memberTaskRecordExists.isPresent() && memberTaskRecordExists.get().getRankValue() >= 0){
+            return BaseResponse.successWithData(memberTaskRecordExists.get().getRankValue());
+        }
+
         Web3j web3j = Web3j.build(new HttpService(rpcAddress));
 
         ClientTransactionManager transactionManager = new ClientTransactionManager(web3j, ZERO_ADDRESS);
@@ -45,21 +57,28 @@ public BaseResponse rank(String address, ContractNameEnum contractName, String c
 
         try {
             BigInteger tokenId = contract.claimedTokenIdBy(address).sendAsync().get(TIMEOUT, TimeUnit.SECONDS);
-            if (tokenId == null || tokenId.intValue() == 0){
+            if (tokenId == null || tokenId.intValue() == 0) {
                 log.error("No claim(tokenId) info found for address:[{}].", address);
                 return BaseResponse.failWithReason("1206", "No claim info found.");
             }
 
             String rank = contract.tokenURI(tokenId).sendAsync().get(TIMEOUT, TimeUnit.SECONDS);
-            if (StringUtils.isBlank(rank)){
+            if (StringUtils.isBlank(rank)) {
                 log.error("No rank info found for address:[{}] and tokenId:[{}].", address, tokenId.intValue());
                 return BaseResponse.failWithReason("1206", "No rank info found.");
             }
             int rankValue = RankExtractorUtil.extractParameterValueFromUrl(rank, "rank");
-            if (rankValue < 0){
+            if (rankValue < 0) {
                 log.error("Invalid rank value:[{}] found in url:[{}].", rankValue, rank);
                 return BaseResponse.failWithReason("1206", "No rank info found.");
             }
+
+            MemberNFTMintRecord memberNFTMintRecord = new MemberNFTMintRecord();
+            memberNFTMintRecord.setAddress(address);
+            memberNFTMintRecord.setContractName(contractName);
+            memberNFTMintRecord.setChainId(chainId);
+            memberNFTMintRecord.setRankValue(rankValue);
+            this.memberNFTMintRecordRepository.save(memberNFTMintRecord);
             return BaseResponse.successWithData(rankValue);
         } catch (Exception e) {
             log.error("Call contract method:[claimedTokenIdBy] remote error.", e);