I have a cave spider spawner and I want to move it. Can I mine it up and place it somewere else, or do I have to keep it were it is?

To move it

Mine it with a dia pickaxe

Then to re craft it cos it will drop an egg, surround it with iron bars (not ingots) and then place

OR, if you have a silk touch it'll give you the spawner without having to reconstruct it (which saves time and money since you don't get iron bars back when you break a spawner, just the egg).

EDIT: Just an addition to what Barney has stated.

Thank you for the help <object class="emojione" data="https://resources.enjin.com/1489581540/themes/core/images/emojione/svg/1f642.svg?0" type="image/svg+xml" standby=":)">:)</object>