The woman in her 30s, who cannot be named in order to protect the identity of her daughter, was sentenced in the Supreme Court in Launceston on Friday.

She was caught drug driving in Devonport in March and told police she had been selling between two and four points of ice per week to fund her own addiction. She had injected ice the night before.

IN OTHER COURT NEWS:

The woman also told police she had given her daughter two points several months earlier, that she "knew it was not the right thing to do", but wanted to stop her from buying larger amounts from others.

The court heard the woman's drug abuse was "serious and long-term", and she remained a daily user of the drug.

She was given a three-month suspended sentence for drug trafficking in 2009, has been caught driving under the influence of drugs and alcohol four times, driving while disqualified three times, and caught using, possessing and selling drugs multiple times.

The woman was found to be suitable for a drug treatment order.

Justice Robert Pearce said her motivation for providing ice to her daughter was "genuine but misguided".

He said it was clear she needed help to address her addiction problems.

The woman was disqualified from driving for 15 months and was placed on a drug treatment order, with a 10-month prison sentence if she breaches the order.