A single phase crystal ceramic which was Aurivillus types belongs to B.L.S.F structure with general formula Bi(2-x)NixTi3O12. The ‘Ni’ doped Bismuth titranate (BT) ceramic was prepared by using solid state reaction technique. but the ceramics based polymer thin film was carried out by sol-gel process for characterization. Now a days Some research state’s that lead-free ferroelectric materials were widely used for many application like high sensitive sensors and memory devices due to their good di-electric property. The B.L.S.F types ferroelectric materials operates in low voltage. Recently various types of materials like BBT, BST, BNT have been take attention for their electrical conductivity properties. And these types of materials were lead-free and eco-friendly. So we make the crystallographic consideration of the Ni doped BT ceramics . it was study to know about structure of atoms , ions or molecules present in an materials. on a 3-D lattice it was arranged in an particular manner . In a aurivillius based compound the BLSF structure are found. This is a type of ferroelectric structure where the materials are well packed by a bismuth oxide layer that is (Bi2O2). It have not holds good for piezo electric and pyro electric compound .it holds good only for ferroelectric materials. The O-R group heve the perpendicular to the axis of materials. In Bismuth titranate ceramics there are only two main element was used. Bismuth oxide and titanium oxide. But it have some limitations .it does not showing any electrical and optical property. We know Ni was a transition element which was electrical conductor and temperature dependent. Show nickel oxide was used as doping element to enhance the dielectric property of the BT ceramics. Polymer shows relaxor behavior which required for censing device. Polymer synthesis was now a very good synthesis process which show very good result. polymer thin film was used for characterization .the x-rd was study by x-ray diffract meter. Morphology was studied by electron emitting process by using scanning electron microscope. by using LCR meter we find ph, conductivity,loss ,constant etc.