my flight will arrive to the Wuhan airport around 10 pm if on time. is there still a shuttle bus available for me to Wuchang?

Which specific place in Wuchang do you want to go?
Generally speaking, the airport shuttle bus line 1 can take you to reach the Fujiapo Long-distance Bus Station in Wuchang.

Fujia Po is close enough to where I need to go (Nanhu Shan Zhuang). the problem is that I'm not sure there is still a shuttle bus waiting for me. My arriving time is 2030, do you think it's safe to take a taxi if shuttle bus has gone. Thanks a lot!there is shuttle bus, do you think I can find a taxi

The shuttle bus line 1 operates till the last flight of the airport.
Upon your reaching, of course, you can find a taxi and it is safe.

Amy,
Thank you so much!