diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
index 66501ebe7d5c8..f190f8ca5055e 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
@@ -695,6 +695,8 @@ case class Cast(
 
   // UDFToBoolean
   private[this] def castToBoolean(from: DataType): Any => Any = from match {
+    case _: StringType if ansiEnabled =>
+      buildCast[UTF8String](_, s => UTF8StringUtils.toBooleanExact(s, getContextOrNull()))
     case _: StringType =>
       buildCast[UTF8String](_, s => {
         if (StringUtils.isTrueString(s)) {
@@ -702,11 +704,7 @@ case class Cast(
         } else if (StringUtils.isFalseString(s)) {
           false
         } else {
-          if (ansiEnabled) {
-            throw QueryExecutionErrors.invalidInputSyntaxForBooleanError(s, getContextOrNull())
-          } else {
-            null
-          }
+          null
         }
       })
     case TimestampType =>
@@ -1881,22 +1879,20 @@ case class Cast(
   private[this] def castToBooleanCode(
       from: DataType,
       ctx: CodegenContext): CastFunction = from match {
+    case _: StringType if ansiEnabled =>
+      val stringUtils = UTF8StringUtils.getClass.getCanonicalName.stripSuffix("$")
+      val errorContext = getContextOrNullCode(ctx)
+      (c, evPrim, _) => code"$evPrim = $stringUtils.toBooleanExact($c, $errorContext);"
     case _: StringType =>
       val stringUtils = inline"${StringUtils.getClass.getName.stripSuffix("$")}"
       (c, evPrim, evNull) =>
-        val castFailureCode = if (ansiEnabled) {
-          val errorContext = getContextOrNullCode(ctx)
-          s"throw QueryExecutionErrors.invalidInputSyntaxForBooleanError($c, $errorContext);"
-        } else {
-          s"$evNull = true;"
-        }
         code"""
           if ($stringUtils.isTrueString($c)) {
             $evPrim = true;
           } else if ($stringUtils.isFalseString($c)) {
             $evPrim = false;
           } else {
-            $castFailureCode
+            $evNull = true;
           }
         """
     case TimestampType =>
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/UTF8StringUtils.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/UTF8StringUtils.scala
index 1c3a5075dab2c..5f9aa4695f50d 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/UTF8StringUtils.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/UTF8StringUtils.scala
@@ -23,7 +23,7 @@ import org.apache.spark.sql.types.{ByteType, DataType, IntegerType, LongType, Sh
 import org.apache.spark.unsafe.types.UTF8String
 
 /**
- * Helper functions for casting string to numeric values.
+ * Helper functions for casting string to primitive values under ANSI mode.
  */
 object UTF8StringUtils {
 
@@ -39,6 +39,12 @@ object UTF8StringUtils {
   def toByteExact(s: UTF8String, context: QueryContext): Byte =
     withException(s.toByteExact, context, ByteType, s)
 
+  def toBooleanExact(s: UTF8String, context: QueryContext): Boolean = {
+    if (StringUtils.isTrueString(s)) true
+    else if (StringUtils.isFalseString(s)) false
+    else throw QueryExecutionErrors.invalidInputSyntaxForBooleanError(s, context)
+  }
+
   private def withException[A](
       f: => A,
       context: QueryContext,