Incidence of terrestrial snails and slug was survey in five localities at Ismailia Governorate during 2021-2022. These localities were Ismailia city, Abo- Swear, El- Kassasen, Fayed and El-Tall El- Kabeer. Survey of land snails and slugs was conducted to study the definition and distribution of snails and slugs attacking different host plant trees, field crops and ornamental plants nurseries. Survey revealed that twelve species belonging to five families of Order Stylommatophora and Class Gastropoda. These families and species were Massylaea (Eoboina) vermiculata, Theba pisana (Helicidae); Monacha obstructa, M. cartusiana, M. cantiana (Hygromiidae); Cochlicella barbara, C acuta, C. conoidea, Xeropicta krynickii (Geomitridae); Succinea Cleopatra, S. putris (Succineidae); Deroceras leave, D. reticulatum (Limicidae). Results revealed that cultivated trees infested with nine species of snails. On the other hand; field crops infested with eleven species of snails. The Slug D. leave was found on strawberry and cabbage plants. Surveyed of terrestrial snails and slug on ornamental plant showed that eleven species were recorded from different plants. Both slugs D. leave and D. reticulatum were highly population on cultivated plants. Massylaea vermiculata was highly population on Gazania, Rozmary and Roses at El-Tall El Kabeer city.