diff --git a/plugins/airdrop/client/cli/tx.go b/plugins/airdrop/client/cli/tx.go
index 23796f1c0..866bab107 100644
--- a/plugins/airdrop/client/cli/tx.go
+++ b/plugins/airdrop/client/cli/tx.go
@@ -26,7 +26,6 @@ import (
 
 const (
 	flagAmount      = "amount"
-	flagTokenIndex  = "token-index"
 	flagTokenSymbol = "token-symbol"
 	flagRecipient   = "recipient"
 )
@@ -42,10 +41,9 @@ func GetApprovalCmd(cdc *codec.Codec) *cobra.Command {
 				WithAccountDecoder(authcmd.GetAccountDecoder(cdc))
 
 			amount := viper.GetInt64(flagAmount)
-			tokenIndex := viper.GetInt64(flagTokenIndex)
 			tokenSymbol := viper.GetString(flagTokenSymbol)
 			recipient := viper.GetString(flagRecipient)
-			msg := airdrop.NewAirdropApprovalMsg(uint64(tokenIndex), tokenSymbol, uint64(amount), common.HexToAddress(recipient).Hex())
+			msg := airdrop.NewAirdropApprovalMsg(tokenSymbol, uint64(amount), common.HexToAddress(recipient).Hex())
 
 			sdkErr := msg.ValidateBasic()
 			if sdkErr != nil {
@@ -55,7 +53,6 @@ func GetApprovalCmd(cdc *codec.Codec) *cobra.Command {
 		},
 	}
 
-	cmd.Flags().Int64(flagTokenIndex, 0, "owner token index")
 	cmd.Flags().String(flagTokenSymbol, "", "owner token symbol")
 	cmd.Flags().Int64(flagAmount, 0, "amount of token")
 	cmd.Flags().String(flagRecipient, "", "bsc recipient address")
diff --git a/plugins/airdrop/msg.go b/plugins/airdrop/msg.go
index b57a78886..4d932da67 100644
--- a/plugins/airdrop/msg.go
+++ b/plugins/airdrop/msg.go
@@ -16,21 +16,19 @@ const (
 
 var _ sdk.Msg = AirdropApproval{}
 
-func NewAirdropApprovalMsg(tokenIndex uint64, tokenSymbol string, amount uint64, recipient string) AirdropApproval {
+func NewAirdropApprovalMsg(tokenSymbol string, amount uint64, recipient string) AirdropApproval {
 	return AirdropApproval{
-		TokenIndex:  tokenIndex,
 		TokenSymbol: tokenSymbol,
 		Amount:      amount,
 		Recipient:   recipient,
 	}
 }
 
-func newAirDropApprovalSignData(tokenIndex uint64, tokenSymbol string, amount uint64, recipient string) airDropApprovalSignData {
+func newAirDropApprovalSignData(tokenSymbol string, amount uint64, recipient string) airDropApprovalSignData {
 	var tokenSymbolBytes [32]byte
 	copy(tokenSymbolBytes[:], []byte(tokenSymbol))
 
 	return airDropApprovalSignData{
-		TokenIndex:  hex.EncodeToString(big.NewInt(int64(tokenIndex)).FillBytes(make([]byte, 32))),
 		TokenSymbol: hex.EncodeToString(tokenSymbolBytes[:]),
 		Amount:      hex.EncodeToString(big.NewInt(int64(amount)).FillBytes(make([]byte, 32))),
 		Recipient:   recipient,
@@ -38,14 +36,12 @@ func newAirDropApprovalSignData(tokenIndex uint64, tokenSymbol string, amount ui
 }
 
 type airDropApprovalSignData struct {
-	TokenIndex  string `json:"token_index"`  // hex string(32 bytes)
 	TokenSymbol string `json:"token_symbol"` // hex string(32 bytes)
 	Amount      string `json:"amount"`       // hex string(32 bytes)
 	Recipient   string `json:"recipient"`    // eth address(20 bytes)
 }
 
 type AirdropApproval struct {
-	TokenIndex  uint64 `json:"token_index"`
 	TokenSymbol string `json:"token_symbol"`
 	Amount      uint64 `json:"amount"`
 	Recipient   string `json:"recipient"` // eth address
@@ -58,7 +54,7 @@ func (msg AirdropApproval) GetInvolvedAddresses() []sdk.AccAddress {
 
 // GetSignBytes implements types.Msg.
 func (msg AirdropApproval) GetSignBytes() []byte {
-	b, err := json.Marshal(newAirDropApprovalSignData(msg.TokenIndex, msg.TokenSymbol, msg.Amount, msg.Recipient))
+	b, err := json.Marshal(newAirDropApprovalSignData(msg.TokenSymbol, msg.Amount, msg.Recipient))
 	if err != nil {
 		panic(err)
 	}