THE COMPOSITION FOR HAIR COSMETIC PREPARATION TO PROVIDE FOAM HAIR COSMETIC PREPARATION IS PROVIDED. THE COMPOSITION FOR HAIR COSMETIC PREPARATION COMPRISES: A PLURALITY OF DIFFERENT AGENTS INCLUDING A FIRST AGENT AND A SECOND AGENT, WHEREIN THE FIRST AGENT CONTAINING AT LEAST A CARBONATE, WHEREIN THE SECOND AGENT CONTAINING AT LEAST AN ACID HAVING FUNCTION OF DECOMPOSING THE TOTAL CARBONATE, WHEREIN THE PLURALITY OF DIFFERENT AGENTS ARE COMPOSED TO SELF-FOAM WHEN BEING MIXED WITH EACH OTHER, AND AT LEAST ONE AGENT AMONG THE PLURALITY OF DIFFERENT AGENTS CONTAINS A THICKENER TO REGULATE VISCOSITY OF THE HAIR COSMETIC PREPARATION IN A RANGE OF 1,500 MPA.S TO 83,000 MPA.S. FIG. 5