Two-way data binding in React means data from state updates the UI, and changes in UI update the state effortlessly.React doesn't use two-way binding by default but opts for one-way data flow for explicit and predictable updates.Although React prefers one-way data flow, you can create your own two-way binding using custom components if needed.Implementing two-way binding in React involves manually updating the state with event handlers for a clearer and more controlled approach.