There are number of spider’s families and their orders but Arinea spider. This is a unique and main spider according to useful for mankind and ecosystem system for their great economic values. Arinea spider found in all over the world but mostly it is easily seen in distict Dadu Sindh Pakistan. It is classified on the basis of morphological characters and their nutritional values. There are number of Arinea spider found in the said district. Crops were mostly destroyed by number of species like Aphids, caterpillars, crickets, wireworms, leaf bugs, grasshoppers. Farmers mostly use pesticides to get crops good. Order Arachnida has communal matter of fearsome little creatures on the seventh number in biodiversity (Nyffeler and Benz, 1980). Arinea is mosly predatory in nature and dangerous for little animals. More than 50000 perceived species having 110 families. Spiders are usual managed to supervene, avaricious, flash eating and generalist predators (A.R Soomro, 2015). Tere are only two to three experts in Sindh Pakistan like Ursani and Soomro, 2010), (Rajput et al., 2013) and (A.R Soomro, 2015).