Queensland police notified the public of a safety risk on September 12 after the contaminated punnets were discovered.
Police say the accused woman faces a maximum of 10 years in prison if convicted, as one charge alleges aggravation.
Authorities are also expected to claim that Trinh had aired her workplace grievances to colleagues, before allegedly spiking the berries as an act of revenge against her employer.
At the time, a disgruntled ex-employee was thought have sabotaged a strawberry farm on the Sunshine Coast.
The woman is due to appear in the Brisbane Magistrates Court on Monday.
Investigations into the broader contamination scandal are ongoing.
"The (Queensland Police Service) coordinated a national investigative response with multiple government, law enforcement and intelligence agencies", they added in a statement.
Australia's strawberry industry, worth A$160 million (US$116 million), was rocked in September after almost 200 complaints were made of sewing needles found in strawberries and other fruits.
A man, Hoani Hearne, was hospitalized in September after swallowing half a needle hidden in a strawberry.
One incident was also reported in neighbouring New Zealand.
"This is a major and unprecedented police investigation with a lot of complexities involved", Detective Superintendent Jon Wacker from the Drug and Serious Crime Group said.
Police were not able to immediately confirm any more details about the woman, such as where she was arrested.
The contamination scares resulted in supermarkets pulling strawberries off the shelves, and tonnes of the fruit was dumped at the peak of the growing season.
Mr Cridland said Trinh, who required a Vietnamese interpreter in court, was an Australian citizen and had complied with all police requirements thus far.
The arrest follows at least 100 reported cases of sewing needles or pins found in fruit across the country.