The present work “ Haematological and biochemical study for the “Effect of Curcuma longa Extracts on Labeo rohita.” is an effort to assess the efficacy of herbal drugs on the health status of edible fish by studying the overall changes in haematological and biochemical parameters. The results revealed an increase of 1.78 ± 0.265g/DL in the the protein content and 0.44 ± 0.002 in Albumin in blood plasma in case of Labeo rohita treated with herbal feed containing Curcuma longa with respect to control groups. An increase in glucose, Cholestral, and Globin was also recorded in fishes fed with the Curcuma longa. While ALT, AST and ALP doesn’t show much increase than controlled fish.