Materials and methods: Nine   fungal isolates  namely  Emericill anidulans,  Mucor racemosus ,  Alternaria pluriseptata  Penicillium canescens, Syncephalastrum racemosum,  Aspergillus fumigatus,  Alternaria chlamydospora, Aspergillus parasiticus and  Ulocladium atrum  were isolated from AL – SHEGA area at AL- QASSIM region.  Results: The influence of   different  sodium chloride concentrations  on the growth rate, morphological and ultrastructure   were studied. Considerable differences in their growth rate and  morphology were detected on medium containing  different concentrations of  sodium chloride (NaCl). Low growth rates were obseved on high  NaCl concentrations . At 15 % NaCl,  low growth of  Emericill anidulans, Penicillium canescens, Syncephalastrum racemosum, Aspergillus parasiticus and Mucor racemosus was detected , whereas all fungal isolates were failed to grow at 20% NaCl.  Scanning Electron Microscope (SEM) revealed that all fungal asexual reproduction organs were metamorphosed at higher NaCl concentration, fungal heads and sporangia were speculated or elongated. Sporangiophores and conidiophores were shortened and dwarfed ,little number of conidia or spores were detected.