This experiments was conducted at Seed Technology Research Unit, Mansoura city and Experimental Farm at Tag El Ez, Agricultural Research Station (+ 7 m altitude,31^o 36" latitude and 30^o , 57" longitude)  to study the effect of treating soybean seed with some plant extracts(Moringa, Basil and Neem) as well as fungicide Vitavax-Thiram-200(Carboxin 37.5 % + Thoram 37.5 %), before storage on soybean seed germination , seedling vigor traits and field emergence after the different storage period (0, 6 and 18 months). The main results could summerized as-follows ; Vitavax treatment recorded the highest germination percentage (85%) and field emergence (75%) compared to other treatments.Treating soybean seed with Neem and Moringa extracts improved germination parameters and field emergence compared to untreated seed. Increasing storage periods decreased gradually germination parameters and seedling growth traits. Interaction between seed treatments and storage periods had significant effects on germination percentage and field emergence. From this study soybean seed (cv Giza 111) could be treated befor storage by Neam , Moringa extract instead of vitavax fungicide for maintenance seed germination and field emergence above 75 % after 6 months from storage.