diff --git a/pkg/relay/ethereum/config.go b/pkg/relay/ethereum/config.go
index a489cc1..a807902 100644
--- a/pkg/relay/ethereum/config.go
+++ b/pkg/relay/ethereum/config.go
@@ -4,10 +4,11 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
-	"github.com/datachainlab/ethereum-ibc-relay-chain/pkg/utils"
 	"math/big"
 	"strings"
 
+	"github.com/datachainlab/ethereum-ibc-relay-chain/pkg/utils"
+
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/hyperledger-labs/yui-relayer/core"
diff --git a/pkg/relay/ethereum/config.pb.go b/pkg/relay/ethereum/config.pb.go
index 195300f..664d3ed 100644
--- a/pkg/relay/ethereum/config.pb.go
+++ b/pkg/relay/ethereum/config.pb.go
@@ -38,11 +38,12 @@ type ChainConfig struct {
 	// option for ibc-solidity ADR-001
 	// if set, the relayer updates a LC contract directly if possible
 	// if null, the relayer updates a LC contract via the handler
-	AllowLcFunctions   *AllowLCFunctionsConfig `protobuf:"bytes,11,opt,name=allow_lc_functions,json=allowLcFunctions,proto3" json:"allow_lc_functions,omitempty"`
-	GasEstimateRate    *Fraction               `protobuf:"bytes,12,opt,name=gas_estimate_rate,json=gasEstimateRate,proto3" json:"gas_estimate_rate,omitempty"`
-	MaxGasLimit        uint64                  `protobuf:"varint,13,opt,name=max_gas_limit,json=maxGasLimit,proto3" json:"max_gas_limit,omitempty"`
-	TxType             string                  `protobuf:"bytes,14,opt,name=tx_type,json=txType,proto3" json:"tx_type,omitempty"`
-	DynamicTxGasConfig *DynamicTxGasConfig     `protobuf:"bytes,15,opt,name=dynamic_tx_gas_config,json=dynamicTxGasConfig,proto3" json:"dynamic_tx_gas_config,omitempty"`
+	AllowLcFunctions    *AllowLCFunctionsConfig `protobuf:"bytes,11,opt,name=allow_lc_functions,json=allowLcFunctions,proto3" json:"allow_lc_functions,omitempty"`
+	GasEstimateRate     *Fraction               `protobuf:"bytes,12,opt,name=gas_estimate_rate,json=gasEstimateRate,proto3" json:"gas_estimate_rate,omitempty"`
+	MaxGasLimit         uint64                  `protobuf:"varint,13,opt,name=max_gas_limit,json=maxGasLimit,proto3" json:"max_gas_limit,omitempty"`
+	TxType              string                  `protobuf:"bytes,14,opt,name=tx_type,json=txType,proto3" json:"tx_type,omitempty"`
+	DynamicTxGasConfig  *DynamicTxGasConfig     `protobuf:"bytes,15,opt,name=dynamic_tx_gas_config,json=dynamicTxGasConfig,proto3" json:"dynamic_tx_gas_config,omitempty"`
+	BlocksPerEventQuery uint64                  `protobuf:"varint,16,opt,name=blocks_per_event_query,json=blocksPerEventQuery,proto3" json:"blocks_per_event_query,omitempty"`
 }
 
 func (m *ChainConfig) Reset()         { *m = ChainConfig{} }
@@ -209,59 +210,61 @@ func init() {
 }
 
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+	0xa5, 0x3a, 0x73, 0x15, 0x30, 0x90, 0x96, 0x0b, 0xf0, 0xaf, 0x56, 0x3b, 0x39, 0x9b, 0x02, 0xfc,
+	0x10, 0x38, 0x89, 0xa7, 0x5c, 0xae, 0x19, 0xf8, 0x3b, 0x74, 0x7a, 0xf7, 0xc2, 0x6f, 0x19, 0xfa,
+	0x77, 0xac, 0x9d, 0x1c, 0x6d, 0x5d, 0xf9, 0xf1, 0xda, 0xe9, 0x05, 0x7d, 0xf7, 0x4f, 0x67, 0xe7,
+	0xdd, 0x4d, 0xa7, 0xf6, 0xfe, 0xa6, 0x53, 0xfb, 0xfb, 0xa6, 0x53, 0xfb, 0xfd, 0xb6, 0xb3, 0xf3,
+	0xfe, 0xb6, 0xb3, 0xf3, 0xd7, 0x6d, 0x67, 0xe7, 0xd7, 0x51, 0xce, 0xed, 0x6c, 0x9e, 0xc6, 0x4c,
+	0x15, 0x83, 0x8c, 0x5a, 0xea, 0xfb, 0x12, 0x34, 0x5d, 0x7f, 0x5b, 0xce, 0x79, 0xca, 0xce, 0x7d,
+	0xd7, 0xe7, 0x1e, 0x1b, 0x94, 0x57, 0xf9, 0xc0, 0xaf, 0xd7, 0x94, 0xb4, 0xee, 0x5f, 0xe6, 0x67,
+	0xff, 0x06, 0x00, 0x00, 0xff, 0xff, 0x82, 0x80, 0xcd, 0x56, 0xa0, 0x06, 0x00, 0x00,
 }
 
 func (m *ChainConfig) Marshal() (dAtA []byte, err error) {
@@ -284,6 +287,13 @@ func (m *ChainConfig) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.BlocksPerEventQuery != 0 {
+		i = encodeVarintConfig(dAtA, i, uint64(m.BlocksPerEventQuery))
+		i--
+		dAtA[i] = 0x1
+		i--
+		dAtA[i] = 0x80
+	}
 	if m.DynamicTxGasConfig != nil {
 		{
 			size, err := m.DynamicTxGasConfig.MarshalToSizedBuffer(dAtA[:i])
@@ -626,6 +636,9 @@ func (m *ChainConfig) Size() (n int) {
 		l = m.DynamicTxGasConfig.Size()
 		n += 1 + l + sovConfig(uint64(l))
 	}
+	if m.BlocksPerEventQuery != 0 {
+		n += 2 + sovConfig(uint64(m.BlocksPerEventQuery))
+	}
 	return n
 }
 
@@ -1138,6 +1151,25 @@ func (m *ChainConfig) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 16:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field BlocksPerEventQuery", wireType)
+			}
+			m.BlocksPerEventQuery = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowConfig
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.BlocksPerEventQuery |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
 		default:
 			iNdEx = preIndex
 			skippy, err := skipConfig(dAtA[iNdEx:])
diff --git a/pkg/relay/ethereum/events.go b/pkg/relay/ethereum/events.go
index 233d8c7..1090327 100644
--- a/pkg/relay/ethereum/events.go
+++ b/pkg/relay/ethereum/events.go
@@ -10,12 +10,17 @@ import (
 	"github.com/ethereum/go-ethereum"
 	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/hyperledger-labs/yui-relayer/core"
 	"github.com/hyperledger-labs/yui-relayer/log"
 
 	"github.com/datachainlab/ethereum-ibc-relay-chain/pkg/contract/ibchandler"
 )
 
+const (
+	BlocksPerEventQueryDefault = 1000
+)
+
 var (
 	abiGeneratedClientIdentifier,
 	abiGeneratedConnectionIdentifier,
@@ -61,24 +66,11 @@ func (chain *Chain) findSentPackets(ctx core.QueryContext, fromHeight uint64) (c
 		dstPortID = channel.Counterparty.PortId
 		dstChannelID = channel.Counterparty.ChannelId
 	}
-
-	query := ethereum.FilterQuery{
-		FromBlock: big.NewInt(int64(fromHeight)),
-		ToBlock:   big.NewInt(int64(ctx.Height().GetRevisionHeight())),
-		Addresses: []common.Address{
-			chain.config.IBCAddress(),
-		},
-		Topics: [][]common.Hash{{
-			abiSendPacket.ID,
-		}},
-	}
-
-	logs, err := chain.client.FilterLogs(ctx.Context(), query)
+	logs, err := chain.filterLogs(ctx, fromHeight, abiSendPacket)
 	if err != nil {
 		logger.Error("failed to filter logs", err)
 		return nil, err
 	}
-
 	defer logger.TimeTrack(now, "findSentPackets", "num_logs", len(logs))
 
 	var packets core.PacketInfoList
@@ -158,22 +150,10 @@ func (chain *Chain) findReceivedPackets(ctx core.QueryContext, fromHeight uint64
 }
 
 func (chain *Chain) findRecvPacketEvents(ctx core.QueryContext, fromHeight uint64) ([]*ibchandler.IbchandlerRecvPacket, error) {
-	query := ethereum.FilterQuery{
-		FromBlock: big.NewInt(int64(fromHeight)),
-		ToBlock:   big.NewInt(int64(ctx.Height().GetRevisionHeight())),
-		Addresses: []common.Address{
-			chain.config.IBCAddress(),
-		},
-		Topics: [][]common.Hash{{
-			abiRecvPacket.ID,
-		}},
-	}
-
-	logs, err := chain.client.FilterLogs(ctx.Context(), query)
+	logs, err := chain.filterLogs(ctx, fromHeight, abiRecvPacket)
 	if err != nil {
 		return nil, err
 	}
-
 	var events []*ibchandler.IbchandlerRecvPacket
 	for _, log := range logs {
 		event, err := chain.ibcHandler.ParseRecvPacket(log)
@@ -187,22 +167,10 @@ func (chain *Chain) findRecvPacketEvents(ctx core.QueryContext, fromHeight uint6
 }
 
 func (chain *Chain) findWriteAckEvents(ctx core.QueryContext, fromHeight uint64) ([]*ibchandler.IbchandlerWriteAcknowledgement, error) {
-	query := ethereum.FilterQuery{
-		FromBlock: big.NewInt(int64(fromHeight)),
-		ToBlock:   big.NewInt(int64(ctx.Height().GetRevisionHeight())),
-		Addresses: []common.Address{
-			chain.config.IBCAddress(),
-		},
-		Topics: [][]common.Hash{{
-			abiWriteAcknowledgement.ID,
-		}},
-	}
-
-	logs, err := chain.client.FilterLogs(ctx.Context(), query)
+	logs, err := chain.filterLogs(ctx, fromHeight, abiWriteAcknowledgement)
 	if err != nil {
 		return nil, err
 	}
-
 	var events []*ibchandler.IbchandlerWriteAcknowledgement
 	for _, log := range logs {
 		event, err := chain.ibcHandler.ParseWriteAcknowledgement(log)
@@ -225,3 +193,44 @@ func (chain *Chain) GetChannelLogger() *log.RelayLogger {
 	channelID := chain.Path().ChannelID
 	return logger.WithChannel(chainID, portID, channelID)
 }
+
+func (chain *Chain) filterLogs(ctx core.QueryContext, fromHeight uint64, event abi.Event) ([]types.Log, error) {
+	blocksPerEventQuery := chain.config.BlocksPerEventQuery
+	if blocksPerEventQuery == 0 {
+		blocksPerEventQuery = BlocksPerEventQueryDefault
+	}
+
+	toHeight := ctx.Height().GetRevisionHeight()
+	totalBlocks := toHeight - fromHeight + 1
+	loopCount := totalBlocks / blocksPerEventQuery
+	if totalBlocks%blocksPerEventQuery != 0 {
+		loopCount++
+	}
+	var logs []types.Log
+	for i := uint64(0); i < loopCount; i++ {
+		var endBlockNum uint64
+		if i == loopCount-1 {
+			endBlockNum = toHeight
+		} else {
+			endBlockNum = fromHeight + (i+1)*blocksPerEventQuery - 1
+		}
+		startBlock := big.NewInt(int64(fromHeight + i*blocksPerEventQuery))
+		endBlock := big.NewInt(int64(endBlockNum))
+		query := ethereum.FilterQuery{
+			FromBlock: startBlock,
+			ToBlock:   endBlock,
+			Addresses: []common.Address{
+				chain.config.IBCAddress(),
+			},
+			Topics: [][]common.Hash{{
+				event.ID,
+			}},
+		}
+		filterLogs, err := chain.client.FilterLogs(ctx.Context(), query)
+		if err != nil {
+			return nil, err
+		}
+		logs = append(logs, filterLogs...)
+	}
+	return logs, nil
+}
diff --git a/proto/relayer/chains/ethereum/config/config.proto b/proto/relayer/chains/ethereum/config/config.proto
index d54a82b..11c4e28 100644
--- a/proto/relayer/chains/ethereum/config/config.proto
+++ b/proto/relayer/chains/ethereum/config/config.proto
@@ -34,6 +34,8 @@ message ChainConfig {
 
   string tx_type = 14;
   DynamicTxGasConfig dynamic_tx_gas_config = 15;
+
+  uint64 blocks_per_event_query = 16;
 }
 
 message AllowLCFunctionsConfig {