sir can any body tell me how i get web browsing history of my client that connected to my mikrotik hotspot server.

you have to enable webproxy access logs, and send them to a remote syslog computer.

sir can you help me how can i do that ???

you have to enable webproxy access logs, and send them to a remote syslog computer.

The short of it is:

1) activate the proxy server on the router

2) redirect the http traffic thru the proxy server

3) send the proxy server logs to a syslog server.