There's no train connection with Macau Airport.
Car and bus
The airport is situated six kilometers south of Macau's center. From the city center you can easily reach the airport in a rental car via the Ponte de Amizade and Avenida de Wai Long.
There are several bus services carried out by the company Transport Macau (Tel. +853(0)28 271 122) from Macau to various destinations. The AP1 bus runs via Macau's center to the Chinese border. There are also regular buses to Cotai and Coloane. Minibuses follow a fixed route, but without compulsory stops. The driver will stop when you call 'jau lok'.
There are also long-distance buses to cities in China, including Guangzhou and Dongguan.
Car rental Macau Airport
You can find counters of car rental companies in the Arrivals Hall. Only two companies are present at Macau Airport: Avis and Happy-Rent-a-Car (also known as Happy Mokes).
You can find taxis outside the Arrivals Hall. Practically all taxis in Macau use a meter. There's an airport surcharge of 5 patacas and the driver will charge 3 patacas for baggage in the trunk. A taxi ride to Macau's center takes 10-15 minutes and costs about 40-50 patacas. Drivers also accept Hong Kong dollars.
There are parking lots on both sides of the terminal. At the North or South parking lot you can park for free.