It is believed the syndicate was based in Victoria and bet on matches in Australia and overseas, with the outcome of the game pre-determined by at least one of the players involved.
It is not clear whether Australian Open matches are being investigated.
The men were arrested in Melbourne and regional Victorian towns by detectives from the Purana Taskforce, which investigates organised crime syndicates.
The same police branch last year arrested six men, including a Malaysian national, on suspicions of corrupting football matches, both domestic and overseas.
The accused tennis match fixers will be "interviewed in relation to match fixing contrary to the Crimes Amendment (Integrity in Sports) Act," a Victoria Police statement read.
"A 27-year-old from Brighton, 40-year-old from Daylesford, 28-year-old from Bonbeach, 29-year-old from Sandhurst, 27-year-old from Black Rock and a 26-year-old from Cheltenham are assisting police with their enquiries," the statement said.
The men are still being interviewed.
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