Barca's sporting director Andoni Zubizarreta said the 21-year-old could be perfectly suited to life in La Liga, despite the fact Harry Redknapp has maintained Bale is not for sale.
The Welsh international scored a stunning hat-trick against Inter Milan at the San Siro last month, sparking reports linking him to Inter and Manchester United.
Bale signed a five-year contract at White Hart Lane earlier this year, but Spurs would be in line to make a considerable profit on their £5 million investment if they let him go in the summer.
It seems Barcelona have now joined the race, which could culminate in a bidding war.
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Meanwhile, Liverpool are said to be considering a January move to sign Manchester City winger Shaun Wright-Phillips. (Daily Mirror)
The England midfielder is in the final year of his contract at Eastlands and could be available for around £5m.
Reds boss Roy Hodgson believes SWP can add some much-needed creativity to his midfield.
Source: DSG