Scopul lucrării vizează studiul structurii parazitofaunei la mistreți din Rezervația Naturală „Plaiul Fagului” din Republica Moldova. Mistrețul (Sus scrofa) fiind o specie silvicolă se întâlnește în turmă în păduri și în diverse culturi agricole de la marginea acestora. Structura taxonomică a parazitofaunei este constituită din diverşi agenţi parazitari: Clasa Trematoda 2 specii (Fasciola hepatica cu EI de 6,3% cazuri și II de 2,6 ex., Dicrocoelium lanceolatum – 12,6% cazuri, II – 2,2 ex.); Clasa Secernentea 9 specii (Trichocephalus suis – 18,2% cazuri, II – 2,4 ex., Strongyloides ransomi – 70,4% cazuri, II – 8,5 ex., Metastrongylus elongatus – 64,6% cazuri, II – 4,5 ex., Oesophagostomum dentatum – 19,4% cazuri, II – 4,4 ex., Physocephalus sexalatus – 4,1% cazuri, II – 3,2 ex., Ascaris suum – 26,5% cazuri, II – 6,4 ex., Hyostrongylus rubidus – 15,8% cazuri, II – 4,5ex., Gongylonema pulchrum – 2,1% cazuri, II – 3,2 ex., Globocephalus urosubulatus – 36,8% cazuri, II – 7,4 ex.); Clasa Acantocephala o specie (Macracanthorhynchus hirudinaceus – 2,4% cazuri, II – un exemplar); Clasa Isospora o specie (Eimeria debliecki – 42,4 % cazuri, II – 8,4 ex.).Din totalul de specii parazitare identificate la mistreți (13 specii): 2 specii (15,5%) sunt specifice doar pentru mistreți (Gongylonema pulchrum; Eimeria debliecki), 8 specii (61,5%) (Trichocephalus suis, Strongyloides ransomi, Metastrongylus elongatus, Oesophagostomum dentatum, Physocephalus sexalatus, Ascaris suum, Hyostrongylus rubidus, Macracanthorhynchus hirudinaceus) sunt comune altor specii de animale sălbatice și domestice, iar 3 specii (23,0%) (Fasciola hepatica, Dicrocoelium lanceolatum și Globocephalus urosubulatus) sunt comune atât la animale, cât și la om. DIVERSITY OF PARASITIC FAUNA IN WILD BOARS FROM THE RESERVATION “PLAIUL FAGULUI” IN THE REPUBLIC OF MOLDOVAThe aim of the research was to study the parasitic fauna composition in the wild boars from the natural reservation “Plaiul Fagului” of the Republic of Moldova. The wild boar (Sus scrofa) forms the bands and inhabiting the forests and nearby agricultural fields. The taxonomic composition of parasitic fauna is formed from various parasitic agents: 2 species of Trematoda Fasciola hepatica with extensivity of invasion 6,3% and intensivity of invasion of 2,6 samples, Dicrocoelium lanceolatum – 12,6% and intensivity of invasion – 2,2 samples); the class Secernentea included 9 species (Trichocephalus suis – in 18,2% of cases, intensivity of invasion – 2,4 samples, Strongyloides ransomi identified in 70,4% cases, intensivity of invasion – 8,5 samples, Metastrongylus elongatus – in 64,6% cases, intensivity of cases – 4,5 samples, Oesophagostomum dentatum – in 19,4% cases, intensivity of invasion – 4,4 samples, Physocephalus sexalatus – in 4,1% cases, intensivity of invasion – 3,2 samples, Ascaris suum – in – 26,5% cases, intensivity of invasion – 6,4 samples, Hyostrongylus rubidus – in 15,8% cases, intensivity of invasion – 4,5 samples, Gongylonema pulchrum – 2,1% cases, intensivity of invasion – 3,2 samples, Globocephalus urosubulatus – in 36,8% cases, intensivity of invasion – 7,4 samples), Acantocephala class was represented with one species (Macracanthorhynchus hirudinaceus – in 2,4% cases, intensivity of invasion – one sample) and Isospora Class represented by one species Eimeria debliecki – in 42,4% cases with intensivity of invasion – 8,4 sample.Out of those 13 species identified in boars, two species (15,5%) are specific for boars only (Gongylonema pulchrum; Eimeria debliecki), eight species (61,5%) (Trichocephalus suis, Strongyloides ransomi, Metastrongylus elongatus, Oesophagostomum dentatum, Physocephalus sexalatus, Ascaris suum, Hyostrongylus rubidus, Macracanthorhynchus hirudinaceus) are common for other wild and domestic animals and three species (23,0%) (Fasciola hepatica, Dicrocoelium lanceolatum and Globocephalus urosubulatus) are common for animals and humans.