A field experiment was conducted assess the influences of biostimuants on the yield of bush bean cv. Co (Gb) 14 at Poothurai village, Tamil Nadu during kharif season of 2019 in randomized block design with nine treatments and three replications. Biostimulants adopted for the study were seaweed extract, panchagavya, chitosan and effective microorganism with two different concentrations applied as foliar spray on 30, 45 and 60 days after sowing.Results revealed that the maximum values of yield parameters viz., length of the raceme(51.2 cm), number of racemes plant-1(8.5), number of flowers raceme-1 (26.4), number of flowers (221.5), days to 50 % flowering (36.6 days), number of pods plant-1(41.6), pod length (10.6 cm), pod width (3.2 cm), single pod weight (4.6 g), number of seeds (5.2), total pod yield (12.6 t/ha), net income (Rs. 1,71,628 ha-1) and B:C ratio (3.14)were recorded under the treatment of seaweed extract (5mL-1) + RDF. The RDF + 3% panchagavya proved next best treatment in respect of these parameters. Among all the biostimulants, seaweed proved superior to others in respect of flowering and yield attributes. The minimum values of all these characters were recorded under control