  By using the Furnstahl, Serot and Tang's model, the effect of density
dependence of the effective nucleon-nucleon-rho-meson (NN-rho) coupling on the
liquid-gas phase transition in hot asymmetric nuclear matter is investigated. A
limit pressure p_lim has been found. We found that the liquid-gas phase
transition cannot take place if p>p_lim. The binodal surface for density
dependent NN-rho coupling situation is addressed.
