diff --git a/eth/tracers/api.go b/eth/tracers/api.go
index 2a62cb80d0..a5a4aed3f6 100644
--- a/eth/tracers/api.go
+++ b/eth/tracers/api.go
@@ -117,7 +117,7 @@ func (context *chainContext) GetHeader(hash common.Hash, number uint64) *types.H
 	return header
 }
 
-// chainContext construts the context reader which is used by the evm for reading
+// chainContext represents the context reader which is used by the evm for reading
 // the necessary chain context.
 func (api *API) chainContext(ctx context.Context) core.ChainContext {
 	return &chainContext{api: api, ctx: ctx}
@@ -195,10 +195,10 @@ type blockTraceTask struct {
 	statedb *state.StateDB   // Intermediate state prepped for tracing
 	block   *types.Block     // Block to trace the transactions from
 	rootref common.Hash      // Trie root reference held for this task
-	results []*txTraceResult // Trace results procudes by the task
+	results []*txTraceResult // Trace results produced by the task
 }
 
-// blockTraceResult represets the results of tracing a single block when an entire
+// blockTraceResult represents the results of tracing a single block when an entire
 // chain is being traced.
 type blockTraceResult struct {
 	Block  hexutil.Uint64   `json:"block"`  // Block number corresponding to this trace
@@ -232,7 +232,7 @@ func (api *API) TraceChain(ctx context.Context, start, end rpc.BlockNumber, conf
 
 // traceChain configures a new tracer according to the provided configuration, and
 // executes all the transactions contained within. The return value will be one item
-// per transaction, dependent on the requestd tracer.
+// per transaction, dependent on the requested tracer.
 func (api *API) traceChain(ctx context.Context, start, end *types.Block, config *TraceConfig) (*rpc.Subscription, error) {
 	// Tracing a chain is a **long** operation, only do with subscriptions
 	notifier, supported := rpc.NotifierFromContext(ctx)
diff --git a/eth/tracers/internal/tracetest/calltrace_test.go b/eth/tracers/internal/tracetest/calltrace_test.go
index 21333d23be..3e0507ed80 100644
--- a/eth/tracers/internal/tracetest/calltrace_test.go
+++ b/eth/tracers/internal/tracetest/calltrace_test.go
@@ -39,7 +39,7 @@ import (
 	"github.com/XinFinOrg/XDPoSChain/rlp"
 	"github.com/XinFinOrg/XDPoSChain/tests"
 
-	// Force-load native and js pacakges, to trigger registration
+	// Force-load native and js packages, to trigger registration
 	_ "github.com/XinFinOrg/XDPoSChain/eth/tracers/js"
 	_ "github.com/XinFinOrg/XDPoSChain/eth/tracers/native"
 )
diff --git a/eth/tracers/js/internal/tracers/4byte_tracer_legacy.js b/eth/tracers/js/internal/tracers/4byte_tracer_legacy.js
index 462b4ad4cb..e4714b8bfb 100644
--- a/eth/tracers/js/internal/tracers/4byte_tracer_legacy.js
+++ b/eth/tracers/js/internal/tracers/4byte_tracer_legacy.js
@@ -46,7 +46,7 @@
 		return false;
 	},
 
-	// store save the given indentifier and datasize.
+	// store save the given identifier and datasize.
 	store: function(id, size){
 		var key = "" + toHex(id) + "-" + size;
 		this.ids[key] = this.ids[key] + 1 || 1;
diff --git a/eth/tracers/tracers_test.go b/eth/tracers/tracers_test.go
index c2e87c5ec5..c6f6feb143 100644
--- a/eth/tracers/tracers_test.go
+++ b/eth/tracers/tracers_test.go
@@ -21,7 +21,6 @@ import (
 	"testing"
 
 	"github.com/XinFinOrg/XDPoSChain/common"
-	"github.com/XinFinOrg/XDPoSChain/common/hexutil"
 	"github.com/XinFinOrg/XDPoSChain/core"
 	"github.com/XinFinOrg/XDPoSChain/core/rawdb"
 	"github.com/XinFinOrg/XDPoSChain/core/types"
@@ -32,20 +31,6 @@ import (
 	"github.com/XinFinOrg/XDPoSChain/tests"
 )
 
-// callTrace is the result of a callTracer run.
-type callTrace struct {
-	Type    string          `json:"type"`
-	From    common.Address  `json:"from"`
-	To      common.Address  `json:"to"`
-	Input   hexutil.Bytes   `json:"input"`
-	Output  hexutil.Bytes   `json:"output"`
-	Gas     *hexutil.Uint64 `json:"gas,omitempty"`
-	GasUsed *hexutil.Uint64 `json:"gasUsed,omitempty"`
-	Value   *hexutil.Big    `json:"value,omitempty"`
-	Error   string          `json:"error,omitempty"`
-	Calls   []callTrace     `json:"calls,omitempty"`
-}
-
 func BenchmarkTransactionTrace(b *testing.B) {
 	key, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 	from := crypto.PubkeyToAddress(key.PublicKey)