diff --git a/lib/bdev/iscsi/bdev_iscsi.c b/lib/bdev/iscsi/bdev_iscsi.c
index 54b915e7f..c084cd7ce 100644
--- a/lib/bdev/iscsi/bdev_iscsi.c
+++ b/lib/bdev/iscsi/bdev_iscsi.c
@@ -209,8 +209,9 @@ bdev_iscsi_io_complete(struct bdev_iscsi_io *iscsi_io, enum spdk_bdev_io_status
 	}
 }
 
+/* Common call back function for read/write/flush command */
 static void
-bdev_iscsi_rw_cb(struct iscsi_context *context, int status, void *_task, void *_iscsi_io)
+bdev_iscsi_command_cb(struct iscsi_context *context, int status, void *_task, void *_iscsi_io)
 {
 	struct scsi_task *task = _task;
 	struct bdev_iscsi_io *iscsi_io = _iscsi_io;
@@ -234,7 +235,7 @@ bdev_iscsi_readv(struct bdev_iscsi_lun *lun, struct bdev_iscsi_io *iscsi_io,
 		      iovcnt, nbytes, lba);
 
 	task = iscsi_read16_task(lun->context, 0, lba, nbytes, lun->bdev.blocklen, 0, 0, 0, 0, 0,
-				 bdev_iscsi_rw_cb, iscsi_io);
+				 bdev_iscsi_command_cb, iscsi_io);
 	if (task == NULL) {
 		SPDK_ERRLOG("failed to get read16_task\n");
 		bdev_iscsi_io_complete(iscsi_io, SPDK_BDEV_IO_STATUS_FAILED);
@@ -261,7 +262,7 @@ bdev_iscsi_writev(struct bdev_iscsi_lun *lun, struct bdev_iscsi_io *iscsi_io,
 		      iovcnt, nbytes, lba);
 
 	task = iscsi_write16_task(lun->context, 0, lba, NULL, nbytes, lun->bdev.blocklen, 0, 0, 0, 0, 0,
-				  bdev_iscsi_rw_cb, iscsi_io);
+				  bdev_iscsi_command_cb, iscsi_io);
 	if (task == NULL) {
 		SPDK_ERRLOG("failed to get write16_task\n");
 		bdev_iscsi_io_complete(iscsi_io, SPDK_BDEV_IO_STATUS_FAILED);
@@ -288,6 +289,21 @@ bdev_iscsi_destruct(void *ctx)
 	return rc;
 }
 
+static void
+bdev_iscsi_flush(struct bdev_iscsi_lun *lun, struct bdev_iscsi_io *iscsi_io, uint32_t num_blocks,
+		 int immed, uint64_t lba)
+{
+	struct scsi_task *task;
+
+	task = iscsi_synchronizecache16_task(lun->context, 0, lba,
+					     num_blocks, 0, immed, bdev_iscsi_command_cb, iscsi_io);
+	if (task == NULL) {
+		SPDK_ERRLOG("failed to get sync16_task\n");
+		bdev_iscsi_io_complete(iscsi_io, SPDK_BDEV_IO_STATUS_FAILED);
+		return;
+	}
+}
+
 static int
 bdev_iscsi_poll(void *arg)
 {
@@ -341,6 +357,12 @@ static void _bdev_iscsi_submit_request(void *_bdev_io)
 				  bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen,
 				  bdev_io->u.bdev.offset_blocks);
 		break;
+	case SPDK_BDEV_IO_TYPE_FLUSH:
+		bdev_iscsi_flush(lun, iscsi_io,
+				 bdev_io->u.bdev.num_blocks,
+				 ISCSI_IMMEDIATE_DATA_NO,
+				 bdev_io->u.bdev.offset_blocks);
+		break;
 	default:
 		bdev_iscsi_io_complete(iscsi_io, SPDK_BDEV_IO_STATUS_FAILED);
 		break;
@@ -368,6 +390,7 @@ bdev_iscsi_io_type_supported(void *ctx, enum spdk_bdev_io_type io_type)
 	switch (io_type) {
 	case SPDK_BDEV_IO_TYPE_READ:
 	case SPDK_BDEV_IO_TYPE_WRITE:
+	case SPDK_BDEV_IO_TYPE_FLUSH:
 		return true;
 
 	default: