SYDNEY - The Australian dollar rallied on Wednesday as domestic and Chinese economic data proved surprisingly strong, while another report circulated that the Sino-U.S. trade dispute might be close to a resolution.

The Aussie dollar hopped up 0.4 percent to $0.7099, after touching a three-week trough of $0.7052 on Tuesday. The bounce was timely for bulls as the currency had looked in danger of breaching major support levels and testing the 70 cent mark.

The New Zealand dollar edged up a little to $0.6770, having hit its lowest since mid-February on Tuesday at $0.6739 in the wake of a dismal survey of business sentiment.

Helping sentiment was a report from the Financial Times that the United States and China were close to a trade deal, though still haggling over some sticking points. 

That was followed by a Caixin/Markit survey showing activity in China's services sector picked up to a 14-month high in March as demand improved at home and abroad. 

Australian data also proved promising, with retail sales jumping 0.8 percent in February when analysts had looked for just a 0.2 percent rise.

It was the largest increase in 15 months and suggested household consumption was making something of a comeback after a poor end to last year. 

Adding to the good news, Australia's trade surplus climbed to a record high of A$4.8 billion ($3.41 billion) in February as a surge in iron ore exports offset a weather-driven drop in coal.

That brought the rolling 12-month surplus to almost A$30 billion, with A$9 billion in January and February alone. That was a windfall for corporate profits, national income and the government's tax take.

All of which would be a comfort for the Reserve Bank of Australia (RBA) which sounded some cautious notes on the economy after its monthly policy meeting on Tuesday.

In particular, analysts seized on a wording change in the last sentence of its policy statement to suggest the bank might be inching toward an easing bias on interest rates.

"The lift in retail sales was a very solid outcome that gives the RBA some reassurance that household spending could bounce back in the first quarter," said Kaixin Owyong, a market economist at NAB.

"There may be some price impacts at play – food sales were unusually strong – but these data give the RBA room to remain on hold."

The better numbers led to a slight lengthening on the odds of a rate cut anytime soon, though a quarter point move is still fully priced for August.

Australian government bond futures dipped, with the three-year bond contract YTTc1 off 3 ticks at 98.635. The 10-year contract YTCc1 also fell 3 ticks to 98.1550.

New Zealand government bond yields rose as much as 4 basis points at the long end of the curve.

($1 = 1.4088 Australian dollars)

(Editing by Sam Holmes) ((Wayne.Cole@thomsonreuters.com; 612 9321 8162; Reuters Messaging: wayne.cole.thomsonreuters.com@reuters.net))