Federal Labor has accused the Government of pork-barrelling after it promised to pump millions of dollars into marginal seat netball clubs, if re-elected.

During June the Coalition made at least 27 netball-related commitments worth more than $40 million combined, including to build and upgrade courts, clubhouses and change rooms.

"I'm a big fan of netball but what's clear is Mr Turnbull's national economic plan is all about a netball-led recovery," Labor's Waste Watch spokesman Pat Conroy said.

"Investment in sporting infrastructure and local community infrastructure is important but it should be done in a transparent way — in a way that's available to all communities in the country if that's possible.

"It shouldn't be done in this desperate haste by this Liberal Government that's clearly just trying to sandbag certain electorates."

Most of the netball promises were for marginal seats, including:

$10.5 million in the Melbourne electorate of Deakin, held by Liberal MP Michael Sukkar;

$10.5 million in the Melbourne electorate of Deakin, held by Liberal MP Michael Sukkar; $8 million for an international netball stadium in the Darwin seat of Solomon, held by country Liberal member Natasha Griggs;

$8 million for an international netball stadium in the Darwin seat of Solomon, held by country Liberal member Natasha Griggs; More than $1 million for four netball-related projects in the Corangamite, which includes Geelong and areas to its west.

"They've clearly just given a pot of money to their own MPs, particularly the ones they think are in trouble, and they're distributing it in the last days of the election campaign to try and buy some votes," Mr Conroy said.

"This is just clearly pork-barrelling and has to be called out as such."

Liberal National Party member for Dawson, George Christensen, last month pledged $250,000 for the Mackay netball association.

Speaker Tony Smith, the Member for Casey, also announced a re-elected Turnbull Government would spend $140,000 improving courts for about 80 netballers at Coldstream, in Melbourne's outer-suburbs.

A Coalition spokesman was not available for interview.

Speaking after a $1.75 million sporting announcement in the marginal Sydney seat of Banks last month, Foreign Minister Julie Bishop denied the promise was pork-barrelling.

"Absolutely not," she said.

"These are the kind of funding announcements that a government concerned about local communities should make."

Local projects could be 'critical' to swing votes: expert

The Coalition's big ticket items were unveiled before the election and since then announcements have been smaller and more local.

Treasurer Scott Morrison this week defended the Federal Government pledging funds for projects like security cameras and street lighting.

"Dealing with crime, addressing community, social cohesion and ensuring communities are supported in the work they do on the ground, I think it is important," Mr Morrison said.

Labor pledged $100 million towards the North Queensland NRL team getting a new stadium in Townsville — a pledge largely mirrored by the Coalition as both sides battle for votes in the city.

University of Western Australia pork-barrelling expert, Professor David Denemark, said promises like these can effect Australian elections.

"What you've got are a couple of dozen seats where you're trying to make a dent because if you get relatively small numbers of votes to swing across you may well secure the seat," he said.

"So that's why even small projects like this, or the ability to win over a few hundred votes, may still be critical."