A method of dislocation pipe diffusion parameters determination during the type $B$ diffusion kinetics is suggested. Proposed method involves diffusion dislocation pipe kinetics for two different annealing times at the same temperature during the type $B$ kinetics and dislocation pipe kinetics for one annealing time at other (lower) temperature during the type $C$ kinetics. Transition time for type $B$ kinetics to type $A$ kinetics (volume diffusion) and kinetics law $t^{1/6}$ for cone top rate are used in this method. Literature experimental data are used for separate determination of the volume diffusion activation energy and the dislocation pipe diffusion activation energy.