How to balance the ability for verifiability and privacy protection for transactions is one of the main challenges to the blockchain technology. zkLedger，being the first ledger system which supports privacy preservation and third party auditing at the same time，was published by MIT Media Lab in NSDI’18 meeting. We proposed an enhanced version of this technology in this article，which is called zkLedger++. zkLedger++ can fix a severe security problem of zkLedger at a minor cost of performance. It can be leveraged by the banking or security industry in the construction of an auditable privacy preserving centralized or decentralized ledger.