what is the quickest way from Shenzhen Futian to Hong Kong Disney World

Futian area district covers a large area, so which place do you live?
In general, you can use the metro Longhua Line to reach the Futian checkpoint. After you pass the border, You can take the MTR East Rail Line from Lok Ma Chau to Hung Hom Station, where you can transfer to West Rail Line to Nam Cheong. Then take the Tung Chung Line to Sunny Bay, where you can use the Disneyland Resort Line to the destination.

Besides the subway trains, you may choose to use the cross-border buses to Disneyland directly. But you need to tell me a more exact position, so that I can help you to check whether you can find that bus or not nearby.

I am in the Shangrila Futian Hotel
4088 Yi Tian Road, Futian District, SZ 518048 China

Thanks a lot

PS: someone told me also to use the ferry - what do you think about?

Well, your hotel is near the Shopping Park metro station. To HK Disneyland, I would suggest you take metro Luobao line to Window of the World. There you can transfer to Shekou line and get off at Wanxia station. After that, take a taxi to SZ Bay, where there are direct buses to the Disneyland.

To use ferry, take the same metro lines to get off at Shekou Port of Shekou line. There you can take a ferry to HK-Macao Ferry Terminal. Then at Sheung Shui MTR station, take Island to Central and then walk to HK station to take Tung Chung line to Sunny Bay. Transfer to Disneyland line to reach. We shall see that this method is too complicated, so the direct bus I mentioned above is a better choice.