diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 00000000..478935c5
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,23 @@
+root = true
+
+# All files
+[*]
+indent_style = space
+
+# Xml files
+[*.xml]
+indent_size = 2
+
+[*.cs]
+# Настройка правила для приватных полей
+dotnet_naming_rule.private_members_with_underscore.symbols = private_fields
+dotnet_naming_rule.private_members_with_underscore.style = prefix_underscore
+dotnet_naming_rule.private_members_with_underscore.severity = suggestion
+
+# Определение, к чему применяется (к закрытым полям)
+dotnet_naming_symbols.private_fields.applicable_kinds = field
+dotnet_naming_symbols.private_fields.applicable_accessibilities = private
+
+# Определение самого стиля (префикс _)
+dotnet_naming_style.prefix_underscore.capitalization = camel_case
+dotnet_naming_style.prefix_underscore.required_prefix = _
diff --git a/PARR.API.sln b/PARR.API.sln
index c96467c0..e5a888da 100644
--- a/PARR.API.sln
+++ b/PARR.API.sln
@@ -11,6 +11,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PARR.Mail", "PARR.Mail\PARR
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{C170A32C-5A9D-4F1C-B6FF-FAE12736ED17}"
 	ProjectSection(SolutionItems) = preProject
+		.editorconfig = .editorconfig
 		.gitignore = .gitignore
 		.gitlab-ci.yml = .gitlab-ci.yml
 		CHANGELOG.md = CHANGELOG.md