The Victorian Greens says it is in line to win several seats in inner Melbourne and the Napthine Government needs to be "put out of its misery," at the official launch of its state election campaign.

National leader Christine Milne said the party was focused on re-engaging voters.

"We know that people are feeling disengaged with politics, they're somewhat disillusioned, and the best way to reconnect with them is door by door, meeting by meeting, person by person, conversation by conversation."

She said the party would focus on restoring integrity and democracy to politics.

"When you get the Greens into Parliament you get transparency, you get a light shone on the kind of backroom deals that are done and that's why we need balance of power here in Victoria.

"The Greens go to the people and tell them what we will do, when we get into the parliament and then we deliver it."

"That's why the Greens are standing here saying we do not support the East West Link toll road. We support public transport."

Victorian leader Greg Barber said the Napthine Government "needs to be put out of its misery."

"We can't afford another four years of a government caught up its own ideological pursuits, so busy fighting its own internal battles that it has completely taken its eye off the ball," Mr Barber told the party faithful.

"It has forgotten about the day-to-day challenges, never mind the big crises that are coming down the line.

"They've completely lost touch."

"I also know that Labor's vested interest just aren't going to see them move to act for the interest of ordinary Victorians."

Ms Milne said while Prime Minister Tony Abbott refused to focus on the issue of global warming, it was at the top of the Greens' agenda.

"We here in Victoria want to talk about it, we want to think globally and act locally...and we are going to not only during the election campaign but when our candidates are elected."

Greens push Labor over balance-of-power deal

The party also urged Labor to agree to a partnership if the Greens held the balance of power after this month's vote.

Both Labor and the Coalition have stated they would not work with the Greens, but the candidate for Melbourne Ellen Sandell called on Labor to re-consider.

"We've put it on the record today that we want to see the end to a Napthine Government," she said.

"We would be seeking an agreement with Labor for a stable, progressive government that takes action on some of the big issues and we think that Daniel Andrews should rather work with the Greens.

"His other choice is to work with the Liberals.

"I think the people of Melbourne would rather he work with The Greens for a stable, progressive government."

When asked about the possibility of working with the Greens, Labor leader Daniel Andrews said "no deal will be offered and no deal will be done".

Ms Sandell said the Napthine Government has been a disaster for the state.

"They've attacked our nurses, our firefighters, our ambulance officers, they've wrecked our environment laws and they've decimated TAFE.

"That's why today we're being clear with voters, saying if we're in balance of power, we won't support a Napthine Government, we'd seek an agreement with Labor for a stable, progressive government.

Planning Minister Matthew Guy said Labor should reveal its intentions regarding preferences

"The Greens are a destructive force to our economy," he said.

"They have virtually ruined the Tasmanian economy, they went a long way to ruining our national economy and now they're asking for a coalition with Labor to do it all again here in Victoria.

"So Victorians have every right to ask 'will Labor do a deal with The Greens?'"