diff --git a/common/types/message/message.go b/common/types/message/message.go
index f121c77e50..801629978a 100644
--- a/common/types/message/message.go
+++ b/common/types/message/message.go
@@ -215,8 +215,8 @@ type ChunkTaskDetail struct {
 
 // BatchTaskDetail is a type containing BatchTask detail.
 type BatchTaskDetail struct {
-	ChunkInfos []*ChunkInfo  `json:"chunk_infos"`
-	SubProofs  []*ChunkProof `json:"sub_proofs"`
+	ChunkInfos  []*ChunkInfo  `json:"chunk_infos"`
+	ChunkProofs []*ChunkProof `json:"chunk_proofs"`
 }
 
 // ProofDetail is the message received from provers that contains zk proof, the status of
diff --git a/coordinator/internal/logic/collector/batch_proof_collector.go b/coordinator/internal/logic/collector/batch_proof_collector.go
index 92a0f7b15e..0cbfaa5eb4 100644
--- a/coordinator/internal/logic/collector/batch_proof_collector.go
+++ b/coordinator/internal/logic/collector/batch_proof_collector.go
@@ -2,8 +2,10 @@ package collector
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 
+	"github.com/scroll-tech/go-ethereum/common"
 	"github.com/scroll-tech/go-ethereum/log"
 	"gorm.io/gorm"
 
@@ -101,17 +103,37 @@ func (bp *BatchProofCollector) Collect(ctx context.Context) error {
 }
 
 func (bp *BatchProofCollector) sendTask(ctx context.Context, hash string) ([]*coordinatorType.ProverStatus, error) {
-	// get chunk proofs from db
-	chunkProofs, err := bp.chunkOrm.GetProofsByBatchHash(ctx, hash)
+	// get chunks from db
+	chunks, err := bp.chunkOrm.GetChunksByBatchHash(ctx, hash)
 	if err != nil {
 		err = fmt.Errorf("failed to get chunk proofs for batch task id:%s err:%w ", hash, err)
 		return nil, err
 	}
+
+	taskDetail := &message.BatchTaskDetail{}
+	for _, chunk := range chunks {
+		chunkInfo := &message.ChunkInfo{
+			ChainID:       bp.cfg.L2Config.ChainID,
+			PrevStateRoot: common.HexToHash(chunk.ParentChunkStateRoot),
+			PostStateRoot: common.HexToHash(chunk.StateRoot),
+			WithdrawRoot:  common.HexToHash(chunk.WithdrawRoot),
+			DataHash:      common.HexToHash(chunk.Hash),
+			IsPadding:     false,
+		}
+		taskDetail.ChunkInfos = append(taskDetail.ChunkInfos, chunkInfo)
+
+		chunkProof := &message.ChunkProof{}
+		if err := json.Unmarshal(chunk.Proof, chunkProof); err != nil {
+			return nil, fmt.Errorf("json Unmarshal ChunkProof error: %w, chunk hash: %v", err, chunk.Hash)
+		}
+		taskDetail.ChunkProofs = append(taskDetail.ChunkProofs, chunkProof)
+	}
+
 	taskMsg := &message.TaskMsg{
 		ID:              hash,
 		Type:            message.ProofTypeBatch,
 		ChunkTaskDetail: nil,
-		BatchTaskDetail: &message.BatchTaskDetail{SubProofs: chunkProofs},
+		BatchTaskDetail: taskDetail,
 	}
 	return bp.BaseCollector.sendTask(taskMsg)
 }
diff --git a/coordinator/internal/orm/chunk.go b/coordinator/internal/orm/chunk.go
index 45ad4b48cb..660848f5b2 100644
--- a/coordinator/internal/orm/chunk.go
+++ b/coordinator/internal/orm/chunk.go
@@ -86,6 +86,21 @@ func (o *Chunk) GetUnassignedChunks(ctx context.Context, limit int) ([]*Chunk, e
 	return chunks, nil
 }
 
+// GetChunksByBatchHash retrieves the chunks associated with a specific batch hash.
+// The returned chunks are sorted in ascending order by their associated chunk index.
+func (o *Chunk) GetChunksByBatchHash(ctx context.Context, batchHash string) ([]*Chunk, error) {
+	db := o.db.WithContext(ctx)
+	db = db.Model(&Chunk{})
+	db = db.Where("batch_hash", batchHash)
+	db = db.Order("index ASC")
+
+	var chunks []*Chunk
+	if err := db.Find(&chunks).Error; err != nil {
+		return nil, fmt.Errorf("Chunk.GetChunksByBatchHash error: %w, batch hash: %v", err, batchHash)
+	}
+	return chunks, nil
+}
+
 // GetProofsByBatchHash retrieves the proofs associated with a specific batch hash.
 // It returns a slice of decoded proofs (message.ChunkProof) obtained from the database.
 // The returned proofs are sorted in ascending order by their associated chunk index.
diff --git a/coordinator/test/api_test.go b/coordinator/test/api_test.go
index 21086c6da9..c18a00ef50 100644
--- a/coordinator/test/api_test.go
+++ b/coordinator/test/api_test.go
@@ -72,6 +72,7 @@ func setupCoordinator(t *testing.T, proversPerSession uint8, wsURL string, reset
 	}
 
 	conf := config.Config{
+		L2Config: &config.L2Config{ChainID: 111},
 		ProverManagerConfig: &config.ProverManagerConfig{
 			ProversPerSession:  proversPerSession,
 			Verifier:           &config.VerifierConfig{MockMode: true},
diff --git a/prover/prover.go b/prover/prover.go
index 965a4b72f0..9935a3f50b 100644
--- a/prover/prover.go
+++ b/prover/prover.go
@@ -296,7 +296,7 @@ func (r *Prover) proveBatch(task *store.ProvingTask) (*message.BatchProof, error
 	if task.Task.BatchTaskDetail == nil {
 		return nil, errors.New("BatchTaskDetail is empty")
 	}
-	return r.proverCore.ProveBatch(task.Task.ID, task.Task.BatchTaskDetail.ChunkInfos, task.Task.BatchTaskDetail.SubProofs)
+	return r.proverCore.ProveBatch(task.Task.ID, task.Task.BatchTaskDetail.ChunkInfos, task.Task.BatchTaskDetail.ChunkProofs)
 }
 
 func (r *Prover) signAndSubmitProof(msg *message.ProofDetail) {