"The Battle of the Labyrinth" received generally positive reviews. "Publishers Weekly" praised Riordan saying, "One of Riordan's strengths is the wry interplay between the real and the surreal." and adding that "The wit, rousing swordplay and breakneck pace will once again keep kids hooked." "Children's Literature" said, "Riordan creates a masterful weaving of Greek mythology and traditional fantasy in this latest book in "The Olympians" series. Fans will enjoy the latest adventures of their favorite characters, and those picking the book up for the first time will have no trouble falling into this magical world." However "School Library Journal" wrote "Like many series, the "Percy Jackson" books are beginning to show the strain of familiarity and repetition." before adding: "However, the overarching story line remains compelling, and the cliff-hanger ending will leave readers breathless in anticipation of the fifth and final volume." "Kirkus" adjudged the book to be the best in the series and said, "The often-philosophical tale zips along with snappy dialogue, humor and thrilling action, culminating in a climactic battle between gods and Titans.