Martin Murray, previous Deputy Leader, steps up following the resignation of Ian Cooper, who will now sit as an independent county councillor.
A permanent leader will be appointed at a meeting of the Full Council in the New Year.
Councillor Martin Murray said:
“I recognise that these are challenging circumstances and the strength of feeling surrounding recent events.
“Let me assure you that my commitment to deliver plans for a better Staffordshire remains absolute, and to represent all residents fairly and with respect.
“My first and foremost priority is to ensure that Staffordshire County Council services continue without hinderance and to showcase Staffordshire as a fantastic county to live, visit and invest."