PROBLEM TO BE SOLVED: To provide a construction method of an artificial lawn which has a required temperature rise suppressing effect and reduces cost for disposal as much as possible, a structure of the artificial lawn which is constructed using the construction method, a manufacturing method of filler to be used for construction of the artificial lawn, and the filler which is manufactured using the manufacturing method.SOLUTION: On a substrate 21 of an artificial lawn 20, a sustained release layer 1 is formed, which releases absorbed water gradually, by filling Bora soil into gaps between piles 22 so as to be approximately 1 cm to 4 cm thick, and a river sand layer 2 is formed on the sustained release layer 1 by filling river sand into gaps between the piles 22 so as to be approximately 0.5 cm to 3 cm thick.
