The collapse of alkali metal poly(acrylate) (PAAM) gels was investigated for various water/organic solvent mixture systems: methanol (MeOH), ethanol (EtOH), 2-propanol (2PrOH), t-butanol(tBuOH), dimethyl sulfoxide (DMSO), acetonitrile (AcN), acetone, tetrahydrofuran (THF), and dioxane. In order to ascertain the counterion specificity in the swelling behavior, four kinds of alkali metal counterions were used: Li+, Na+, K+, and Cs+. Remarkable solvent and counterion specificities were observed for every counterion species and every solvent system, respectively. For example, in aqueous EtOH the dielectric constants (D-cr) at which collapse occurred were in the order PAACs < PAALi < PAAK < PAANa. On the other hand, the D-cr at which PAALi gel collapsed increased in the order tBuOH < dioxane < THF < MeOH < 2PrOH < MOH < acetone < AcN < DMSO, where the D-cr ranged from about 39 to about 67. This was in contrast to our previous observation for a partially quaternized poly(4-vinyl pyridine) (P4VP) gel, which collapsed in a much narrower D-cr region in similar mixed solvents. The present solvent- and counterion-specific collapses are discussed on the basis of solvent properties such as the dielectric constant and Gutmann's donor number and acceptor number of a pure solvent.