The present invention provides a functional substance-releasing agent, a method for producing the same, and a composition containing the functional substance-releasing agent. The present invention provides the functional substance-releasing agent containing the silicate ester compound represented by the formula (1) in an amount of 35 to 95% by mass and the silicate ester compound represented by the formula (2) in an amount of 0 to 40% by mass, the method for producing the functional substance-releasing agent, and the composition containing the functional substance-releasing agent:(wherein, R1 represents an aliphatic hydrocarbon group having 4 to 22 carbon atoms in total that may be subst ituted with phenyl, hydroxyl or an alkoxy group R2 represents a residual group excluding a hydroxy group from a functional alcohol and R3 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.)
