1. Login to Jiangxi Digital Power Invoice Platform: First, you need to login to Jiangxi Digital Power Invoice Platform official website or download the corresponding mobile phone application. You can find and download the official application of the platform through search engines or app stores.

2. Registration and login: register an account on the platform and log in.

3. Fill in billing information: After logging in, you need to fill in relevant billing information, including taxpayer identification number, company name, address and telephone number. Ensure that the information provided is accurate.

4. Select invoice type: after filling in the invoice information, you need to select the invoice type, including general VAT invoice and special VAT invoice. Choose the appropriate charging type according to your needs.

5. Fill in the contents of the invoice: fill in the specific contents of the invoice according to the actual situation, including the name, quantity, unit price and other information of the goods or services.

6. Check the information and submit it: After filling in the contents of the invoice, carefully check all the information to ensure accuracy, and then click the submit button.

7. Download electronic invoice: After submission, the system will generate an electronic invoice and provide download options. You can choose to download the electronic invoice and save it to a local device or print it out.