Moment Form is one of the music composition techniques proposed by the 20th-century composer Stockhausen in the 1950s. It divides the music structure into each moment, and no longer emphasizes to the continuity of musical structure. According to Stockhausen: “… but rather in which concentration on the Now—on every Now—makes vertical slices, as it were, that cut through a horizontal temporal conception to a timelessness I call eternity: an eternity that does not begin at the end of time but is attainable in every moment.” This thesis begins with the analysis of the “Moment Form” created by Stockhausen, then interprets that how to apply and reflect the “Moment Form” on “The Flow of Imagery”, which contains a water motif, composed by WU, Mei-hsuan, the author of this thesis.