Children's Minister Cassy O'Connor said legislation to establish the check system was being drafted and would be released for public comment soon.

Ms O'Connor said she wanted to have the legislation before Parliament by October.

Beyond Abuse spokesman Steve Fisher said he was happy the government was finally progressing the issue, but said the October deadline was still too far away.

"It's snail-pace, and it's very frustrating for the victims of abuse," Mr Fisher said.

"We are talking about the most vulnerable people in the community - I don't care what it costs."

Opposition children's spokeswoman Jacquie Petrusma said the delay in implementing the checks was not good enough.

"The Labor-Green experiment is so distracted and focused on its own survival that it can't focus on what's important, including children," Ms Petrusma said.

Advocates have been calling for Tasmania to introduce working with children checks for about 10 years.

Tasmania is the only state without the checks, which provide a detailed background check and are designed to screen for potential sexual predators who may not have a prior conviction.

Ms O'Connor said the Tasmanian legislation would be based on the model used by the Australian Capital Territory, and include protections for a range of vulnerable people including the elderly, disabled or severely mentally ill.

"The challenge has been to deliver an effective scheme in the most efficient and economical way so that it's accessible to the agencies that might access it, such as the volunteer sector," she said.

The government allocated $900,000 to the Health and Community Services Department budget to fund a centralised office to run the checks.

Ms O'Connor said the office would be run out of the Department of Justice, and would also be supported by the justice and sport budgets.