Maurice Jones-Drew -- NO CHARGES in Alleged Bar Attack

NFL superstar Maurice Jones-Drew will NOT be charged with battery for allegedly socking a security guard in the face during a bar fight in Florida last month ... TMZ has learned.

The State Attorney's Office in Florida announced ... they do not believe they have enough evidence to prove the Jacksonville Jaguars running back committed a crime during the May 26 incident at the Conch House in St. Augustine, FL.

"Based on the evidence, the evidence does not support the charge," a rep for the SA tells TMZ.

We broke the story ... a security guard told police MJD suckerpunched him during a melee ... causing serious damage to his face. Cops initially identified MJD as a person of interest.

We know the alleged incident was captured on tape ... but clearly, prosecutors didn't feel the footage proved MJD's guilt beyond a reasonable doubt.