E-commerce platform server and method for multiple checkout

The present invention discloses an e-commerce platform server, which is applied to perform a multiple checkout method. The e-commerce platform server includes a memory module, an interface module, and a computing module. The memory module stores a plurality of bonus types and the bonus amounts thereof, and a plurality of stored value types and the pre-purchase prices thereof of a user account. The interface module provides a checkout interface, which displays a product price. The checkout interface shows the bonus type and a bonus discount selection pattern thereof. The checkout interface shows the stored value types and shows a price discount input column thereof. The computing module subtracts the selected bonus amount and at least one discount price entered in the price discount input column from the product amount, to obtain an amount to be paid, which is displayed on the checkout interface.