‘Drug Proving' is a method, unique to Homoeopathy where the pathogenesis of a drug is evolved through its trials on apparently Healthy Human Provers. Drug proving is the process of acquiring knowledge of instruments intended for the cure of natural disease (Aphorism - 105)5 Objective: To find out the pathogenetic effects of an Araucaria Columnaris on healthy human beings. Methodology: Randomised double blind placebo controlled study. It is recommended to have at least 50 provers who can complete the total duration. The provers divided into 2 group one medicinal group (Araucaria Columnaris) which consist 25 provers and another placebo group with 25 provers. Record were maintained of both group, then the analysis was done and characteristic symptoms of Araucaria Columnaris were identified. Result:Since only one prover from medicinal group experienced symptom out of 25 provers. Therefore, we rejected alternate hypothesis. Conclusion: As only 2 provers showed few symptoms, from which one prover was from placebo group and another one was from medicinal group which experienced few symptoms which were not so prominent to be considered as pathogenic symptoms of Araucaria columnaris 3X. So we concluded that Araucaria columnaris 3X does not give pathogenic symptoms on healthy human being of both sexes.