At present, projects of new generation fast breeder reactors (FBR) [1] including those withsodium coolants (BN-1200, MBIR) continue to be developed in Russian Federation. Technicalsolutions of such reactors are aimed above all to improve safety performance with complianceto applicable safety standards, including system of standards on atomic energy equipment(1st, 2nd and 3rd classes) and obligatory certification that has been put into operation sinceJuly 2017. Electromagnetic pumps (EMP) of main and auxiliary systems of those reactorsneed to provide the required long service life at high liquid metal temperatures that are, forexample, 50 years at 300◦C for EMP of MBIR second loop, and 15 years at 410◦C for immersedEMP of BN-1200 cold trap. New methods and approaches in development of electromagneticpumps for liquid metal fast breeder reactors are considered based on the design of immersedEMP of BN-1200 cold trap. Results of complex research of novel high temperature resistantelectrical engineering materials to meet service life requirements at high temperature areshown. Main issues on improvement of manufacturing technology of those materials are stated.Computational results aimed to optimize EMP design, fulfill stated above requirements andconfirm specified parameters are presented.