Abstract: An integrated harness boiler suit has a body and a safety harness. The body has a trunk and multiple limbs. The trunk has multiple limb openings corresponding to a wearer's limbs, an access opening formed centrally in the trunk so a wearer can put on and remove the suit and a linking component for opening and closing. The safety harness is sewn on the body and has a chest binding sewn on the trunk for strengthening closure of the access opening and a connecting leash sewn on the trunk for connecting to a fixture or other person using a line. The integrated boiler suit is convenient to wear, requires no training to be worn safely and may be worn quickly and safely in emergencies.