I'm in Florida how do I get domestic violence charges dropped against my spouse

You may not be able to get them dropped.  I assume, from your question, that you are the alleged victim.  It is not up to the victim, once law enforcement has responded to a complaint, whether the charge is dropped or pursued by the state.  That decision is in the discretion of the prosecutor's office.   Each State Attorney's Office has its own policy and procedures if an alleged victim notifies it that he/she wants to drop the charges.  Even then the policy and procedures are not always consistent so there are many variables.