LSU (19-1, 7-0 SEC) shot 58 percent from the field, including better than 67 percent in the first half.
Arkansas (13-8, 5-3 SEC), which entered the evening tied for third in the conference standings, became latest victim of LSU's "smothersome" defense -- and the 17th opponent that failed to shoot better than 40 percent. The Lady Razorbacks were 22 of 65 for 34 percent.
The Lady Tigers stood tall behind the front line of Sylvia Fowles and Ashley Thomas. The duo's presence in the lane was too much for Arkansas, as they combined to make 16 of 20 shots, score 38 points and grab 19 rebounds.
Fowles' 13th double double of the season came in the form of 21 points and 11 rebounds. Thomas had career-best efforts of 17 points and eight rebounds.
LSU's leading scorer, Seimone Augustus, finished just below her season average (20.8 ppg.) with 19 points. Florence Williams (14) and Erica White (10) were also in double figures scoring. White had a game-high eight assists.
The Lady Tigers made 25-of-29 free throws for 86 percent.
Arkansas was led by Leslie Howard who had 17 points on 6-of-17 shooting. Melissa Hobbs was the only other Lady Razorback in double figures scoring with 10 points.
The Lady Tigers made their first five shots from the field and 7-of-8 to open the game to take a 16-9 lead after six minutes of play. A pair of free throws and a layup by Erica White gave LSU a 20-9 advantage two minutes later.
LSU's torrid shooting pace continued, as Fowles dominated the paint with 14 points after making 6-of-7 shots to start the contest. The Lady Tigers missed only six of their first 22 attempts (72.7 percent).
A 15-0 LSU run to end the first half allowed the Lady Tigers to build the lead to 47-23. Arkansas was held scoreless for the final 6:40.
LSU shots 67 percent from the field in the first 20 minutes (18 of 27), while holding the Lady Razorbacks to 31 percent (10 of 32). Fowles led all scorers with 14, while Augustus added nine despite 3-of-9 shooting.
Arkansas made five three pointers in the first 4:32 of the second half to cut the Lady Tigers' advantage to 15, 58-43.
However, Fowles scored six points as part of a 11-2 LSU run to push the lead back the halftime margin, 69-45, with 12:00 to play in the game.
LSU led by as many as 36 en route to the easy win.
The Lady Tigers return to action on Super Bowl Sunday for a 2 p.m. contest against Ole Miss in the Maravich Center.
Lady Tigers stay perfect in SEC
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