diff --git a/changelog/fix_a_false_positive_for_style_fetch_env_var_cop.md b/changelog/fix_a_false_positive_for_style_fetch_env_var_cop.md
new file mode 100644
index 00000000000..632bd0b8c08
--- /dev/null
+++ b/changelog/fix_a_false_positive_for_style_fetch_env_var_cop.md
@@ -0,0 +1 @@
+* [#10581](https://github.com/rubocop/rubocop/issues/10581): Fix a false positive for `Style/FetchEnvVar` when comparing with `ENV['TERM']`. ([@koic][])
diff --git a/lib/rubocop/cop/style/fetch_env_var.rb b/lib/rubocop/cop/style/fetch_env_var.rb
index 9ed2886883f..258ccb1c114 100644
--- a/lib/rubocop/cop/style/fetch_env_var.rb
+++ b/lib/rubocop/cop/style/fetch_env_var.rb
@@ -53,8 +53,9 @@ def allowed_var?(expression)
 
         def used_as_flag?(node)
           return false if node.root?
+          return true if node.parent.if_type?
 
-          node.parent.if_type? || (node.parent.send_type? && node.parent.prefix_bang?)
+          node.parent.send_type? && (node.parent.prefix_bang? || node.parent.comparison_method?)
         end
 
         # Check if the node is a receiver and receives a message with dot syntax.
diff --git a/spec/rubocop/cop/style/fetch_env_var_spec.rb b/spec/rubocop/cop/style/fetch_env_var_spec.rb
index be82c930898..8f98e7ae43e 100644
--- a/spec/rubocop/cop/style/fetch_env_var_spec.rb
+++ b/spec/rubocop/cop/style/fetch_env_var_spec.rb
@@ -49,15 +49,18 @@
     end
   end
 
-  context 'when it is compared with other object' do
-    it 'registers an offense' do
-      expect_offense(<<~RUBY)
+  context 'when it is compared `==` with other object' do
+    it 'does not register an offense' do
+      expect_no_offenses(<<~RUBY)
         ENV['X'] == 1
-        ^^^^^^^^ Use `ENV.fetch('X')` or `ENV.fetch('X', nil)` instead of `ENV['X']`.
       RUBY
+    end
+  end
 
-      expect_correction(<<~RUBY)
-        ENV.fetch('X', nil) == 1
+  context 'when it is compared `!=` with other object' do
+    it 'does not register an offense' do
+      expect_no_offenses(<<~RUBY)
+        ENV['X'] != 1
       RUBY
     end
   end