diff --git a/CHANGELOG.md b/CHANGELOG.md
index 123a71a3eb..b3d12ac1d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@
 * [#1490](https://github.com/crypto-org-chain/cronos/pull/1490) Update cometbft to v0.38.8.
 * (versiondb) [#1491](https://github.com/crypto-org-chain/cronos/pull/1491) Free slice data in HasAtVersion.
 * (versiondb) [#1498](https://github.com/crypto-org-chain/cronos/pull/1498) Reduce scope of copying slice data in iterator.
+* [#1500](https://github.com/crypto-org-chain/cronos/pull/1500) Set mempool MaxTx from config.
 
 
 *Jun 18, 2024*
diff --git a/app/app.go b/app/app.go
index 678ccc0a7b..8ae241fd1a 100644
--- a/app/app.go
+++ b/app/app.go
@@ -182,6 +182,8 @@ const (
 	AddrLen = 20
 
 	FlagBlockedAddresses = "blocked-addresses"
+
+	DefaultMaxTxs = 1000
 )
 
 var Forks = []Fork{}
@@ -371,9 +373,14 @@ func New(
 	// NOTE we use custom transaction decoder that supports the sdk.Tx interface instead of sdk.StdTx
 	// Setup Mempool and Proposal Handlers
 	baseAppOptions = append(baseAppOptions, func(app *baseapp.BaseApp) {
+		maxTxs := cast.ToInt(appOpts.Get(server.FlagMempoolMaxTxs))
+		if maxTxs <= 0 {
+			maxTxs = DefaultMaxTxs
+		}
 		mempool := mempool.NewPriorityMempool(mempool.PriorityNonceMempoolConfig[int64]{
 			TxPriority:      mempool.NewDefaultTxPriority(),
 			SignerExtractor: evmapp.NewEthSignerExtractionAdapter(mempool.NewDefaultSignerExtractionAdapter()),
+			MaxTx:           maxTxs,
 		})
 		handler := baseapp.NewDefaultProposalHandler(mempool, app)
 
diff --git a/integration_tests/configs/default.jsonnet b/integration_tests/configs/default.jsonnet
index 33353020b5..79017e338f 100644
--- a/integration_tests/configs/default.jsonnet
+++ b/integration_tests/configs/default.jsonnet
@@ -23,6 +23,9 @@
         'block-range-cap': 10000,
         'logs-cap': 10000,
       },
+      mempool: {
+        'max-txs': 1000,
+      },
       evm: {
         'block-executor': 'block-stm',
       },