The northern part of Sinai is studied to detect the structural elements controlling it and evaluate the distribution and the thickness of the sedimentary cover, which has an important role in both crude oil and water explorations. Therefore, gravity and magnetic data of the area were analyzed by different techniques. Besides, a structure tectonic map was established depending on the integration of the available data. The trend analysis technique was applied to gravity and magnetic data to detect major tectonic and structural trends. Fast Fourier Transform is used to calculate the regional and residual components. Moreover, the depth estimation of the basement rocks was carried out by applying a spectral analysis technique along 57 gravity and magnetic profiles. The deduced fault trends indicate the obvious effect of the Syrian Arc and the East-African tectonic trends on the area. The constructed structure map shows alternated uplifted and down faulted striped blocks, trending mainly in the NNE-SSW direction. The depth to the basement rocks ranges between 2 and 8 km. The 2D gravity and magnetic modeling indicates low magnetic susceptibility indicating granitic basement rocks. The area contains promising sites for hydrocarbon accumulation due to its thick sedimentary cover, in addition to alternated uplifted and down faulted blocks.