In order to achieve sustainable and high yielding of large seed lentil genotypes with desirable agronomic characteristics such as large seed, standing plant form for mechanized harvest, early maturity, transition of research products to farmers and evaluating of advanced lentil genotypes in farmers fields, six ideal lentil lines by names: FLIP 2004-55L, FLIP 2005-3L, FLIP 2006-I1L, X96S144K26, FLIP 92-12L and X96S147K8 with Gachsaran lentil cultivar for check conducted in Dehdasht, Likak and Basht locations at 2010-11 growing season in a randomized complete biock design in three replicates. Results of path analyssis showed that the variable of number of pods in plant had 83% correlation to yield and as the most important traits was an important factor to identify superior genotype. In next rank, thousand seed weight trait with 56% correlation to yield recognized the second influenced trait. Overall in this study, three traits pods in plant, thousand seed weight and infertile pods in plant recognized, as the most important factors in the identification of excel genotypes in subtropical regions. In order to determine the stability of evaluated genotypes, used of parametric uni-variate methods including Roemer environmental variance, Fransis and Kannenberg Coefficient of Variance, Shukla stability variance, Wricke's equivalence, Finley and Wilkinson's regression coefficient, and Perkins and Jinks statistic. According to results of different parameters, finally genotype no. 5 by FLIP 92-12L pedigree selected as a most stable genotype and is the favorite choice for conducting of extension-research project in subtropical regions.