The invention relates to an oil-containing solid waste electromagnetic heating indirect thermal desorption treatment device and method. The device and method are suitable for harmless treatment of oil-based rock debris, organic contaminated soil and light oil leaching soil generated by oil field drilling exploitation and shale gas development. The device comprises an automatic control unit as wellas a feeding pretreatment unit, a quantitative feeding and protection unit, an electromagnetic heating indirect thermal desorption unit, a thermal desorption steam processing unit, a condensate processing unit and a discharging and cooling conveying unit which are in communication in sequence in an oil-containing solid waste material transfer mode, the condensate processing unit is connected withthe thermal desorption steam processing unit and used for providing cooling medium for cooling, and the discharging and cooling conveying unit connected at a discharging port of the electromagnetic heating indirect thermal desorption unit. The electromagnetic heating indirect thermal desorption unit comprises a group or more than one group of thermal desorption chamber devices which are arrangedin parallel, each group of thermal desorption chamber devices comprises two or more thermal desorption chambers which are connected in series, and all thermal desorption chambers are arranged in a layered mode and are connected end to end. The thermal desorption steam output by each thermal desorption chamber is directionally condensed and recovered by the thermal desorption steam treatment unit.