The authors give an account of the contemporary parasitological position in Laos, based on data from abroad, data provided by the Laos health services and results of the authors' parasitological examinations. Examination of clinical material (in Laos by Willis method and after fixation with SAF by examination of the sediment in the CSR) revealed a high immunity rate of the population with ascaridosis, ancylostomosis, trichuriosis and opisthorchosis and a relatively low prevalence of Protozoan infections.