Maybe, maybe not.
With a new SSD, you wan the OS and most/all applications on the SSD.
So, there are two ways to do thie.
1. Clone from the old drive tot he new SSD.
This requires some investigation.
How large is the new SSD?
How large is the used space on the current HDD?
Is the current install working just fine?
For instance, if you have 550GB currently used on your HDD, and are getting a 250GB SSD....that won't work without a lot of prelim work.
or
2. Fresh install on the SSD.
This requires a reinstall of all your applications, as well as the OS.