Abstract: This specification discloses an online bidding system and the method thereof. During the bidding process, the left bidding time of a case is used to define different statistical analysis weights. Combined the trade data of the deals done in the past with the seller of the current case, the system searches for match conditions and bidding information of the bidders. It actively performs real-time statistical analysis for possible match chances of the current case. Such information is provided to the bidders in the bidding process for their reference to make further bids. Therefore, the disclosed system and method can increase the chances of matching between the seller and the bidders. The invention utilizes a weighted statistical analysis method to provide bidders with valuable bidding strategies during the bidding process, so that the bidders can possibly win the bid at a lower cost.