The invention belongs to the technical field of power equipment, and relates to a loading isolation type oil liquid integration power system. The loading isolation type oil liquid integration power system is characterized in that a controller is electrically connected with each component, an internal combustion engine is a single planet rank, the single planet rank is connected with a machinery energy feedback system, one end of a hydraulic pump is connected with the single planet rank, the other end of the hydraulic pump is connected with a hydraulic transformer, an external energy charging interface is connected with the hydraulic transformer, a first direction control valve is respectively connected with the hydraulic pump, the hydraulic transformer, a first energy accumulator group and a second energy accumulator group, a second direction control valve is respectively connected with the first energy accumulator group, the second energy accumulator group and a hydraulic power regulation distributor, a first pressure detection sensor is manufactured on the first energy accumulator group in connection mode, and a second pressure detection sensor is manufactured on the second energy accumulator group in connection mode. The loading isolation type oil liquid integration power system is simple in structure, scientific in theory, low in cost, environmentally friendly, low in energy consumption, high in work efficiency, and high in energy recovery utilization efficiency.