Based on evaluation state theory of residuated lattice and by defining probability measure in set of all evaluation states of residuated lattice and set of all formulate respectively
the probability truth degree of formula in residuated lattices semantics is introduced using the integral method
then the probability logic metric space is established in residuated lattices semantics
the approximate reasoning of quantitative logic methods have been entended to residuated lattices semantics
the feasible graded method of residuated lattices semantics is provided.