This research aimed to evaluate four stocking densities and determine the densities tend to increase grain yield in the cultivation of climbing beans (Phaseolus vulgaris L.) variety Huasca Poroto The Huallaga under the trellis system in the town of Lamas and perform economic analysis of the treatments studied. The research was conducted on the grounds of the Fundo "The Pacific" owned by Mr. Jorge Luis Pelaez Rivera, politically located in the district and province of Lamas, San Martin department. The statistical design of randomized complete block (DBCA) with three replications and five treatments, with a total of 15 experimental units was used. The information gathered in the field was processed using SPSS 19 statistical software, which uses the P-value as meaningful comparison to the confidence levels of 0.05 and 0.01 differences in the analysis of variance (ANOVA) and multiple range t...