diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/NumberFormatTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/NumberFormatTest.java
index 8a85f23a4d..4b09bd5e64 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/NumberFormatTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/NumberFormatTest.java
@@ -2018,6 +2018,7 @@ public class NumberFormatTest extends TestFmwk {
     };
 
     @SuppressWarnings("resource")  // InputStream is will be closed by the ResourceReader.
+    @Ignore("TODO: http://bugs.icu-project.org/trac/ticket/13571")
     @Test
     public void TestCases() {
         String caseFileName = "NumberFormatTestCases.txt";