diff --git a/ethers-ext/example/signRecover/1_tx_signRecover_legacy.js b/ethers-ext/example/signRecover/1_tx_signRecover_legacy.js
new file mode 100644
index 000000000..fbf931478
--- /dev/null
+++ b/ethers-ext/example/signRecover/1_tx_signRecover_legacy.js
@@ -0,0 +1,45 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet, parseKlay } = require("../../dist/src");
+
+const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+  const wallet = new Wallet(senderPriv, provider);
+
+  const receiverAddr = wallet.address;
+  const senderAddr = wallet.address;
+
+  let tx = {
+    from: senderAddr,
+    to: receiverAddr,
+    value: parseKlay("1"),
+  };
+
+  // sign
+  const popedTx = await wallet.populateTransaction(tx);
+  const txHashRLP = await wallet.signTransaction(popedTx);
+  let txObj = ethers.utils.parseTransaction(txHashRLP);
+  console.log(txHashRLP);
+  console.log(txObj);
+
+  // verify
+  const rawTx = ethers.utils.serializeTransaction(popedTx);
+  const msgHash = ethers.utils.keccak256(rawTx);
+  const msgBytes = ethers.utils.arrayify(msgHash);
+
+  const expandedSig = {
+    r: txObj.r,
+    s: txObj.s,
+    recoveryParam: 0,
+    v: txObj.v
+  };
+  const signature = ethers.utils.joinSignature(expandedSig);
+
+  const recoverAddr = ethers.utils.recoverAddress(msgBytes, signature);
+  console.log("\nsender", senderAddr, "\nrecovered", recoverAddr);
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/2_tx_signRecover_pubkey.js b/ethers-ext/example/signRecover/2_tx_signRecover_pubkey.js
new file mode 100644
index 000000000..4e5d2f7f5
--- /dev/null
+++ b/ethers-ext/example/signRecover/2_tx_signRecover_pubkey.js
@@ -0,0 +1,31 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet, parseKlay, TxType } = require("../../dist/src");
+
+const receiverAddr = "0xe15cd70a41dfb05e7214004d7d054801b2a2f06b";
+const senderAddr = "0xe15cd70a41dfb05e7214004d7d054801b2a2f06b";
+const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+  const wallet = new Wallet(senderAddr, senderPriv, provider);
+
+  let tx = {
+    type: TxType.ValueTransfer,
+    from: senderAddr,
+    to: receiverAddr,
+    value: parseKlay("1"),
+  };
+
+  tx = await wallet.populateTransaction(tx);
+  const senderTxHashRLP = await wallet.signTransaction(tx);
+
+  console.log(senderTxHashRLP);
+  console.log(wallet.decodeTxFromRLP(senderTxHashRLP));
+
+  const recoverAddr = await provider.send("klay_recoverFromTransaction", [senderTxHashRLP, "latest"]);
+  console.log("\nsender", senderAddr, "\nrecovered", recoverAddr);
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/3_tx_signRecover_multisig.js b/ethers-ext/example/signRecover/3_tx_signRecover_multisig.js
new file mode 100644
index 000000000..bd2cdab2e
--- /dev/null
+++ b/ethers-ext/example/signRecover/3_tx_signRecover_multisig.js
@@ -0,0 +1,52 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet, parseKlay, TxType } = require("../../dist/src");
+
+
+const receiverAddr = "0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e";
+const senderAddr = "0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e";
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+
+  let user1 = new Wallet(
+    "0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e",
+    "0xa32c30608667d43be2d652bede413f12a649dd1be93440878e7f712d51a6768a",
+    provider
+  );
+  let user2 = new Wallet(
+    "0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e",
+    "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8",
+    provider
+  );
+  let user3 = new Wallet(
+    "0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e",
+    "0xc9668ccd35fc20587aa37a48838b48ccc13cf14dd74c8999dd6a480212d5f7ac",
+    provider
+  );
+
+  let tx = {
+    type: TxType.ValueTransfer,
+    from: senderAddr,
+    to: receiverAddr,
+    value: parseKlay("1"),
+  };
+
+  tx = await user1.populateTransaction(tx);
+  const senderTxHashRLP = await user1.signTransaction(tx);
+
+  const tx2 = await user2.populateTransaction(user2.decodeTxFromRLP(senderTxHashRLP));
+  const senderTxHashRLP2 = await user2.signTransaction(tx2);
+
+  const tx3 = await user3.populateTransaction(user3.decodeTxFromRLP(senderTxHashRLP2));
+  const senderTxHashRLP3 = await user3.signTransaction(tx3);
+
+  console.log(senderTxHashRLP3);
+  console.log(user1.decodeTxFromRLP(senderTxHashRLP3));
+
+  const recoverAddr = await provider.send("klay_recoverFromTransaction", [senderTxHashRLP3, "latest"]);
+  console.log("\nsender", senderAddr, "\nrecovered", recoverAddr);
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/4_tx_signRecover_rolebased.js b/ethers-ext/example/signRecover/4_tx_signRecover_rolebased.js
new file mode 100644
index 000000000..5a68ea6ed
--- /dev/null
+++ b/ethers-ext/example/signRecover/4_tx_signRecover_rolebased.js
@@ -0,0 +1,37 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet, parseKlay, TxType } = require("../../dist/src");
+
+
+const receiverAddr = "0x5bd2fb3c21564c023a4a735935a2b7a238c4ccea";
+const senderAddr = "0x5bd2fb3c21564c023a4a735935a2b7a238c4ccea";
+
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+
+  let user = new Wallet(
+    "0x5bd2fb3c21564c023a4a735935a2b7a238c4ccea",
+    "0xc9668ccd35fc20587aa37a48838b48ccc13cf14dd74c8999dd6a480212d5f7ac",
+    provider
+  );
+
+  let tx = {
+    type: TxType.ValueTransfer,
+    from: senderAddr,
+    to: receiverAddr,
+    value: parseKlay("1"),
+  };
+
+  tx = await user.populateTransaction(tx);
+  const senderTxHashRLP = await user.signTransaction(tx);
+
+  console.log(senderTxHashRLP);
+  console.log(user.decodeTxFromRLP(senderTxHashRLP));
+
+  const recoverAddr = await provider.send("klay_recoverFromTransaction", [senderTxHashRLP, "latest"]);
+  console.log("\nsender", senderAddr, "\nrecovered", recoverAddr);
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/5_msg_signRecover_legacy.js b/ethers-ext/example/signRecover/5_msg_signRecover_legacy.js
new file mode 100644
index 000000000..c09a80f93
--- /dev/null
+++ b/ethers-ext/example/signRecover/5_msg_signRecover_legacy.js
@@ -0,0 +1,20 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet} = require("../../dist/src");
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+  const wallet = new Wallet("0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8", provider);
+
+  const address = wallet.address;
+  let msg = "I♥KLAYTN";
+  let msgHash = ethers.utils.hashMessage(msg);
+  let msgHashBytes = ethers.utils.arrayify(msgHash);
+  const signature = await wallet.signMessage(msgHashBytes);
+
+  const recoverAddr = await provider.send("klay_recoverFromMessage", [address, msgHash, signature, "latest"]);
+  console.log("\nsender", address, "\nrecovered", recoverAddr);
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/6_msg_signRecover_pubkey.js b/ethers-ext/example/signRecover/6_msg_signRecover_pubkey.js
new file mode 100644
index 000000000..827032a65
--- /dev/null
+++ b/ethers-ext/example/signRecover/6_msg_signRecover_pubkey.js
@@ -0,0 +1,23 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet} = require("../../dist/src");
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+  const wallet = new Wallet(
+    "0xe15cd70a41dfb05e7214004d7d054801b2a2f06b",
+    "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8",
+    provider);
+
+  const address = wallet.address;
+  let msg = "I♥KLAYTN";
+  let msgHash = ethers.utils.hashMessage(msg);
+  let msgHashBytes = ethers.utils.arrayify(msgHash);
+  const signature = await wallet.signMessage(msgHashBytes);
+
+  const recoverAddr = await provider.send("klay_recoverFromMessage", [address, msgHash, signature, "latest"]);
+  console.log("\nsender", address, "\nrecovered", recoverAddr);
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/7_msg_signRecover_multisig.js b/ethers-ext/example/signRecover/7_msg_signRecover_multisig.js
new file mode 100644
index 000000000..feb8a9d24
--- /dev/null
+++ b/ethers-ext/example/signRecover/7_msg_signRecover_multisig.js
@@ -0,0 +1,25 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet} = require("../../dist/src");
+
+// multisig account address
+const address = "0x82c6a8d94993d49cfd0c1d30f0f8caa65782cc7e";
+// a member private key of multisig account
+const priv = "0xc9668ccd35fc20587aa37a48838b48ccc13cf14dd74c8999dd6a480212d5f7ac";
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+  const wallet = new Wallet(address, priv, provider);
+
+  let msg = "I♥KLAYTN";
+  let msgHash = ethers.utils.hashMessage(msg);
+  let msgHashBytes = ethers.utils.arrayify(msgHash);
+  const signature = await wallet.signMessage(msgHashBytes);
+
+  const recoverAddr = await provider.send("klay_recoverFromMessage", [address, msgHash, signature, "latest"]);
+  console.log("\nsender", address, "\nrecovered", recoverAddr);
+  console.log("private key's legacy type address", await wallet.getEtherAddress());
+}
+
+main();
\ No newline at end of file
diff --git a/ethers-ext/example/signRecover/8_msg_signRecover_rolebased.js b/ethers-ext/example/signRecover/8_msg_signRecover_rolebased.js
new file mode 100644
index 000000000..6e1691191
--- /dev/null
+++ b/ethers-ext/example/signRecover/8_msg_signRecover_rolebased.js
@@ -0,0 +1,25 @@
+const ethers = require("ethers");
+
+// const { Wallet, parseKlay } = require("@klaytn/ethers-ext");
+const { Wallet} = require("../../dist/src");
+
+// role-based account address
+const address = "0x5bd2fb3c21564c023a4a735935a2b7a238c4ccea";
+// transaction role key of role-based account
+const priv = "0xc9668ccd35fc20587aa37a48838b48ccc13cf14dd74c8999dd6a480212d5f7ac";
+
+async function main() {
+  const provider = new ethers.providers.JsonRpcProvider("https://public-en-baobab.klaytn.net");
+  const wallet = new Wallet(address, priv, provider);
+
+  let msg = "I♥KLAYTN";
+  let msgHash = ethers.utils.hashMessage(msg);
+  let msgHashBytes = ethers.utils.arrayify(msgHash);
+  const signature = await wallet.signMessage(msgHashBytes);
+
+  const recoverAddr = await provider.send("klay_recoverFromMessage", [address, msgHash, signature, "latest"]);
+  console.log("\nsender", address, "\nrecovered", recoverAddr);
+  console.log("private key's legacy type address", await wallet.getEtherAddress());
+}
+
+main();
\ No newline at end of file