The present research was planned with the objectives (i) to assess biological parameters of farm women working at farm in summer season and (ii) to assess relationship between biological parameters of farm women while working at farm in summer season with environmental factors and their body composition parameters. Multistage random sampling method was used. Thus, the total sample of the study was 80 farm women who were involved in agriculture, animal husbandry or horticulture activities. Direct association was found between aural temperature of farm women and air temperature at their field. Age of farm women was found directly associated with high oral temperature working at farm. It can be inferred that oral temperature of older farmwomen increases more under the condition of heat stress. Mean skin surface temperature of farm women was found associated with their mass body fat, soft lean mass and air temperature. If the MBF, SLM and air temperature are high, it will significantly affect the mean skin temperature of farm women while working outdoors in hot climate. Heart rate was found associated with height and air velocity.