how I can reach at fujian from Bangladesh ?time and ticket price?

It is a province in China that contains many cities. Do you want to go to Xiamen?

You can fly from Dhaka to Guangzhou first and transfer to another flight to Xiamen. The air ticket fare varies a lot from time to time. You can find the cost on the flight page of this website. Different airlines have different transfer duration. It takes around 21 to 28 hours on the way.