The Compulsory Enforcement Act Article 85

In auctioning the immovable property, the enforcement court may, upon the creditor's or the debtor's petition or on its own authority, adopt the method of bidding.
中文原文 強制執行法第85條
拍賣不動產,執行法院得因債權人或債務人之聲請或依職權,以投標之方法行之。

English translation for reference only; the Chinese text prevails. Not legal advice.