diff --git a/cmd/neofs-node/config/mainchain/config.go b/cmd/neofs-node/config/mainchain/config.go
deleted file mode 100644
index a231c015..00000000
--- a/cmd/neofs-node/config/mainchain/config.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package mainchainconfig
-
-import (
-	"time"
-
-	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
-)
-
-const (
-	subsection = "mainchain"
-
-	// DialTimeoutDefault is a default dial timeout of main chain client connection.
-	DialTimeoutDefault = 5 * time.Second
-)
-
-// RPCEndpoint returns a list of the values of "rpc_endpoint" config parameter
-// from "mainchain" section.
-//
-// Returns empty list if the value is not a non-empty string array.
-func RPCEndpoint(c *config.Config) []string {
-	return config.StringSliceSafe(c.Sub(subsection), "rpc_endpoint")
-}
-
-// DialTimeout returns the value of "dial_timeout" config parameter
-// from "mainchain" section.
-//
-// Returns DialTimeoutDefault if the value is not positive duration.
-func DialTimeout(c *config.Config) time.Duration {
-	v := config.DurationSafe(c.Sub(subsection), "dial_timeout")
-	if v > 0 {
-		return v
-	}
-
-	return DialTimeoutDefault
-}
diff --git a/cmd/neofs-node/config/mainchain/config_test.go b/cmd/neofs-node/config/mainchain/config_test.go
deleted file mode 100644
index 3335ac13..00000000
--- a/cmd/neofs-node/config/mainchain/config_test.go
+++ /dev/null
@@ -1,38 +0,0 @@
-package mainchainconfig_test
-
-import (
-	"testing"
-	"time"
-
-	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
-	mainchainconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/mainchain"
-	configtest "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/test"
-	"github.com/stretchr/testify/require"
-)
-
-func TestMainchainSection(t *testing.T) {
-	t.Run("defaults", func(t *testing.T) {
-		empty := configtest.EmptyConfig()
-
-		require.Empty(t, mainchainconfig.RPCEndpoint(empty))
-		require.Equal(t, mainchainconfig.DialTimeoutDefault, mainchainconfig.DialTimeout(empty))
-	})
-
-	const path = "../../../../config/example/node"
-
-	var rpcs = []string{
-		"https://rpc1.n3.nspcc.ru:30341",
-		"https://rpc2.n3.nspcc.ru:30341",
-	}
-
-	var fileConfigTest = func(c *config.Config) {
-		require.Equal(t, rpcs, mainchainconfig.RPCEndpoint(c))
-		require.Equal(t, 30*time.Second, mainchainconfig.DialTimeout(c))
-	}
-
-	configtest.ForEachFileType(path, fileConfigTest)
-
-	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
-	})
-}
diff --git a/config/example/node.env b/config/example/node.env
index dc82860e..1c5c3c99 100644
--- a/config/example/node.env
+++ b/config/example/node.env
@@ -58,10 +58,6 @@ NEOFS_MORPH_DIAL_TIMEOUT=30s
 NEOFS_MORPH_DISABLE_CACHE=true
 NEOFS_MORPH_RPC_ENDPOINT="wss://rpc1.morph.fs.neo.org:40341/ws wss://rpc2.morph.fs.neo.org:40341/ws"
 
-# Main chain section (optional)
-NEOFS_MAINCHAIN_DIAL_TIMEOUT=30s
-NEOFS_MAINCHAIN_RPC_ENDPOINT="https://rpc1.n3.nspcc.ru:30341 https://rpc2.n3.nspcc.ru:30341"
-
 # API Client section
 NEOFS_APICLIENT_DIAL_TIMEOUT=15s
 
diff --git a/config/example/node.json b/config/example/node.json
index 06d04e10..411b1666 100644
--- a/config/example/node.json
+++ b/config/example/node.json
@@ -99,13 +99,6 @@
       "wss://rpc2.morph.fs.neo.org:40341/ws"
     ]
   },
-  "mainchain": {
-    "dial_timeout": "30s",
-    "rpc_endpoint": [
-      "https://rpc1.n3.nspcc.ru:30341",
-      "https://rpc2.n3.nspcc.ru:30341"
-    ]
-  },
   "apiclient": {
     "dial_timeout": "15s"
   },
diff --git a/config/example/node.yaml b/config/example/node.yaml
index 1921b141..79421cc4 100644
--- a/config/example/node.yaml
+++ b/config/example/node.yaml
@@ -85,12 +85,6 @@ morph:
     - wss://rpc1.morph.fs.neo.org:40341/ws
     - wss://rpc2.morph.fs.neo.org:40341/ws
 
-mainchain:  # DEPRECATED section, is not used and not read
-  dial_timeout: 30s  # timeout for main chain NEO RPC client connection
-  rpc_endpoint:  # main chain NEO RPC endpoints; are shuffled and used one by one until the first success
-    - https://rpc1.n3.nspcc.ru:30341
-    - https://rpc2.n3.nspcc.ru:30341
-
 apiclient:
   dial_timeout: 15s  # timeout for NEOFS API client connection