The Argentine legend has also stated that his compatriot is superior to Cristiano Ronaldo.
The Camp Nou side qualified for the Champions League final this week by overcoming Bayern Munich, while also have a Copa del Rey finale against Athletic Bilbao to play.
With one more win securing the Spanish top flight title, it could well be an historic campaign for Messi and his club.
The four-time Ballon d’Or winner has been in scintillating form since the turn of the year, scoring and creating goals at will for Luis Enrique’s men.
Diego Maradona has given his verdict on Messi, comparing him with perennial rival Cristiano Ronaldo.
The former Argentina talisman has stated that his countryman is superior to the Real Madrid forward but also stated that he scored more beautiful goals than Messi does in his career.
"Messi is better than Ronaldo,” The London Evening Standard quote Maradona as saying on CNN.
“I think the goals come with the style. I think Messi is finding his own style.
"But he is killing it with his goals! This makes you accelerate the pace - most likely he will find it very soon.
"I think that I had my own style from the very beginning. And that is the point in which I could be better than Messi.
“But Messi has scored 300 goals. Me, I think I scored 200, more in my whole career. But the thing is my goals were more beautiful.”
Messi has started 2015 like a man with a point to prove, with the South American star looking like the frontrunner for the Ballon d’Or this year.
The Argentine attacker will also represent his nation in the Copa America next month.