I created a Animation Object, and I added Rubble Property.
But I didn’t know which gameobject can I rename into Alive,
this Object’s model wouldn’t disappear after destruction.
no. To my understanding because rubble & intractable binary state are both intractable (rubble has been deprecated and is now a part of the intractable typing), you can’t have both, only one.
It may still be possible via unity by using an IOBS hook but I’m doubtful.
If you’re referring to Rubble Destroy and Interactability Rubble, the Rubble properties can still be used. We recommend doing so in our documentation, so that modders can create interactable objects that are also destructible. 
E.g.,
- Cash registers are destructible droppers.
- Lamps are destructible binary states.
My assumption is that @gloa233 should double-check how they’ve set the object up in Unity. We haven’t brought over Unity-specific documentation for objects onto our documentation site yet. But this old guide is still relevant:
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