diff --git a/examples/rbac_policy.csv b/examples/rbac_policy.csv
index 4150272..8479f3c 100644
--- a/examples/rbac_policy.csv
+++ b/examples/rbac_policy.csv
@@ -2,5 +2,4 @@ p, alice, data1, read
 p, bob, data2, write
 p, data2_admin, data2, read
 p, data2_admin, data2, write
-
 g, alice, data2_admin
diff --git a/src/config.ts b/src/config.ts
index 2c6f51d..4d3664c 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -17,10 +17,11 @@ export class Config {
   private static DEFAULT_SECTION = 'default';
   private static DEFAULT_COMMENT = '#';
   private static DEFAULT_COMMENT_SEM = ';';
+  private static DEFAULT_MULTI_LINE_SEPARATOR = '\\';
 
   private data: Map<string, Map<string, string>>;
 
-  constructor() {
+  private constructor() {
     this.data = new Map<string, Map<string, string>>();
   }
 
@@ -75,33 +76,56 @@ export class Config {
   }
 
   private parseBuffer(buf: Buffer): void {
-    let section = '';
     const lines = buf.toString().split('\n');
+    const linesCount = lines.length;
+    let section = '';
+    let currentLine = '';
 
     lines.forEach((n, index) => {
       const line = n.trim();
+      const lineNumber = index + 1;
       if (!line) {
         return;
       }
 
-      if (line.startsWith(Config.DEFAULT_COMMENT)) {
-        return;
-      } else if (line.startsWith(Config.DEFAULT_COMMENT_SEM)) {
+      if (line.startsWith(Config.DEFAULT_COMMENT) || line.startsWith(Config.DEFAULT_COMMENT_SEM)) {
         return;
       } else if (line.startsWith('[') && line.endsWith(']')) {
+        if (currentLine.length !== 0) {
+          this.write(section, lineNumber - 1, currentLine);
+          currentLine = '';
+        }
         section = line.substring(1, line.length - 1);
       } else {
-        const equalIndex = line.indexOf('=');
-        if (equalIndex === -1) {
-          throw new Error(`parse the content error : line ${index + 1}`);
+        let shouldWrite = false;
+        if (line.includes(Config.DEFAULT_MULTI_LINE_SEPARATOR)) {
+          currentLine += line.substring(0, line.length - 1).trim();
+          // when the last line has a "\" string
+          if (lineNumber + 1 === linesCount) {
+            shouldWrite = true;
+          }
+        } else {
+          currentLine += line;
+          shouldWrite = true;
+        }
+        if (shouldWrite) {
+          this.write(section, lineNumber, currentLine);
+          currentLine = '';
         }
-        const key = line.substring(0, equalIndex);
-        const value = line.substring(equalIndex + 1);
-        this.addConfig(section, key.trim(), value.trim());
       }
     });
   }
 
+  private write(section: string, lineNum: number, line: string) {
+    const equalIndex = line.indexOf('=');
+    if (equalIndex === -1) {
+      throw new Error(`parse the content error : line ${lineNum}`);
+    }
+    const key = line.substring(0, equalIndex);
+    const value = line.substring(equalIndex + 1);
+    this.addConfig(section, key.trim(), value.trim());
+  }
+
   public getBool(key: string): boolean {
     return !!this.get(key);
   }
diff --git a/src/index.ts b/src/index.ts
index f90187e..83079b7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -14,6 +14,7 @@
 
 import * as Util from './util';
 
+export * from './config';
 export * from './enforcer';
 export * from './effect';
 export * from './model';
diff --git a/test/config/config.test.ts b/test/config/config.test.ts
new file mode 100644
index 0000000..5c84652
--- /dev/null
+++ b/test/config/config.test.ts
@@ -0,0 +1,25 @@
+import { Config } from '../../src';
+
+const config = Config.newConfig('test/config/testini.ini');
+
+describe('multi-line test', () => {
+  it('should config.get("multi1::name") to equal r.sub==p.sub&&r.obj==p.obj', function() {
+    expect(config.get('multi1::name')).toEqual('r.sub==p.sub&&r.obj==p.obj');
+  });
+
+  it('should config.get("multi2::name") to equal r.sub==p.sub&&r.obj==p.obj', function() {
+    expect(config.get('multi2::name')).toEqual('r.sub==p.sub&&r.obj==p.obj');
+  });
+
+  it('should config.get("multi3::name") to equal r.sub==p.sub&&r.obj==p.obj', function() {
+    expect(config.get('multi3::name')).toEqual('r.sub==p.sub&&r.obj==p.obj');
+  });
+
+  it('should config.get("multi4::name") to equal r.sub==p.sub&&r.obj==p.obj', function() {
+    expect(config.get('multi4::name')).toEqual('');
+  });
+
+  it('should config.get("multi5::name") to equal r.sub==p.sub&&r.obj==p.obj', function() {
+    expect(config.get('multi5::name')).toEqual('r.sub==p.sub&&r.obj==p.obj');
+  });
+});
diff --git a/test/config/testini.ini b/test/config/testini.ini
new file mode 100644
index 0000000..59a6987
--- /dev/null
+++ b/test/config/testini.ini
@@ -0,0 +1,47 @@
+# test config
+debug = true
+url = act.wiki
+
+; redis config
+[redis]
+redis.key = push1,push2
+
+; mysql config
+[mysql]
+mysql.dev.host = 127.0.0.1
+mysql.dev.user = root
+mysql.dev.pass = 123456
+mysql.dev.db = test
+
+mysql.master.host = 10.0.0.1
+mysql.master.user = root
+mysql.master.pass = 89dds)2$#d
+mysql.master.db = act
+
+; math config
+[math]
+math.i64 = 64
+math.f64 = 64.1
+
+# multi-line test
+[multi1]
+name = r.sub==p.sub \
+   &&r.obj==p.obj\
+   \
+[multi2]
+name = r.sub==p.sub \
+   &&r.obj==p.obj
+
+[multi3]
+name = r.sub==p.sub \
+   &&r.obj==p.obj
+
+[multi4]
+name = \
+\
+ \
+
+[multi5]
+name = r.sub==p.sub \
+   &&r.obj==p.obj\
+   \