From 19 February the companies are offering wi-fi access in some 44 restaurants in Australia.
McDonald's CEO, Guy Russo, said this new technology will enable customers to work online using their own laptop or a PDA at McDonald's restaurants.
"Many of our customers are business people on the move and we see this partnership with Telstra as leading the way and anticipating the future communication needs of our customers," Mr Russo said.
Telstra Chief of Products, Ms Lynda O'Grady, said the partnership demonstrated Telstra's commitment to providing a network of hotspots at convenient locations around Australia and internationally through the Wireless Broadband Alliance (WBA).
"We are delighted to work with McDonald's to provide Australians with the latest in wireless communications enabling them to significantly improve their productivity or simply to log on, check emails or surf the net when it suits them," she said.
"Telstra continues to extend its network of hotspots in conjunction with partners who, like McDonald's, are committed to providing the latest wireless services for their customers."
Telstra Wireless Hotspots are available in selected McDonald's restaurants in New South Wales, Victoria, Queensland, South Australia and Western Australia.
The partnership between Telstra and McDonald's will ultimately give wireless broadband internet access to customers at approximately 500 premium locations Australia-wide within the next 12 to 18 months.