TWOV 24H query

Yes, it definitely will. As you can see, the time from your scheduled landing in Kunming, until your scheduled departure from Shanghai, is way shorter than 24 hours time frame, so you will travel covered by 24 hour visa free transit. Please, just have in mind to approach 24/144 hour visa free transit counter immediately upon your landing in Kunming where you will apply for a temporary entry permit that will allow you to enter China and proceed for your next flight. This application is absolutely free and here you will just present your flight itinerary.