Chief Constable Andy Trotter, the lead on communications for the Association of Chief Police Officers (Acpo), said:
Many offensive comments are made every day on social media and guidance will assist the police to focus on the most serious matters.
There is not only the matter of principle to be addressed but also the practicality of dealing with thousands of potential offences.
More top news
Wrestling legend Jimmy Snuka has been charged over the death of his girlfriend more than 30 years ago.
Rogue landlords are making life unbearable for tens of thousands of tenants in England, according to Shelter.
David Cameron has announced plans for 18 more free schools and vowed to continue to open hundreds more in the next five years.