The temperature dependence of the bulk and surface electron yield under ion bombardment of a zirconium target is examined. For the bulk ion-electron emission (BIEE) at 800 K a broad maximum is observed. Such a character of the BIEE depends on sorption processes on the zirconium surface. At 1130 K a strong increase of BIEE is also noticed. We conclude that the change of the target material modification (αZr → βZr at 1130 K) influences BIEE. Similar temperature dependences were observed for surface ion-electron emission (SIEE). The yield of these electrons takes place with participation of the excited surface particles (adsorbed or contaminant) and metal surface electrons. Probably, the increase of the BIEE and SIEE at the phase transition temperature is connected with the change of the surface transparency and with the increase of the number of contaminant particles displaced in the vicinity of the surface.