Crucible preparation method and crucible

The invention provides a crucible preparation method and a crucible, and relates to the technical field of crystal pulling crucible preparation. In the process of preparing the current crucible, before starting arc melting, a graphite electrode is preheated, so that during arc melting, the temperature of the tip, close to an arc starting point, in the graphite electrode is T1, and T1 is larger than or equal to 200 DEG C; the preheating heat comes from the heat of the graphite electrode after the previous crucible is prepared, and/or the heat for preheating the graphite electrode by adopting a heating source; the previous crucible is the crucible which has the shortest time difference with the current crucible in all crucibles obtained by melting the graphite electrode. Therefore, during arc starting melting, the temperature difference of temperature rise of the tip, close to the arc starting point, in the graphite electrode is relatively small, the thermal stress of the tip, close to the arc starting point, i