On Alibaba's trading platform, the steps for uploading orders are as follows:

Log in to your Alibaba account and enter the backend management interface of the trading platform.

Click the "Transaction Management" menu and select the "Order Management" option.

On the order management page, click the "Add Order" button.

Fill in the relevant information of the order, including buyer information, product information, price, quantity, etc.

After confirming that the order information is correct, click the "Save" button to save the order information to the system.

If you need to upload multiple orders, you can repeat the above steps, fill in and save each order one by one.

It should be noted that before uploading an order, you need to make sure that you have become a registered user of the platform and have reached a transaction agreement with the seller. In addition, the Alibaba platform also provides some other transaction tools, such as online payment, shipment tracking, transaction dispute resolution, etc., which can be used according to specific circumstances.