The 28-year-old actor has not checked into a rehab facility but is receiving voluntary treatment for alcohol addiction, according to Melissa Kates.
She said in a statement that LaBeouf's recent actions - which include an arrest for disrupting a Broadway play - are symptoms of a larger health problem.
She said he has taken the first of many necessary steps towards recovery.
LaBeouf was charged with disorderly conduct, criminal trespass and harassment during a production of Cabaret last week.
The actor was arrested for drink-driving in 2008 after he crashed his pick-up, injuring his hand and knee.
LaBeouf is best known for appearing in the first three Transformers films.