The charity is alarmed by the level of drink-related road accidents and believes more should be done to regulate the way alcohol is sold in forecourt shops.
A briefing document suggests that drink-drive warnings should be displayed in all garages which sell alcohol, and that operators should be forced to comply with high standards of staff training.
The charity also believes there should be a study of how bans on forecourt sales of alcohol work in other countries. This already applies in UK motorway service stations.
Alcohol Concern Cymru policy manager Andrew Misell said: “Although the number of drink-driving accidents has substantially reduced over the last 20 years, as many as one in six deaths on roads in the UK are caused by drivers over the legal alcohol limit.”
He added: “Of course, motorists have many opportunities to purchase alcohol from premises other than petrol stations, such as off-licences and supermarkets, but we need to think carefully about whether making alcohol available at petrol stations is in the best interest of all road users.”