The invention relates to a mixed detection and oscillation device for oil samples. The device comprises a box, a seal cover, a heating element and a temperature detecting element, a motor base, a cylindrical eccentric shaft sleeve, a tray, a test tube plate and a chuck with insertion holes, wherein the seal cover is arranged on the box; the heating element and the temperature detecting element are arranged on one side of the box; the motor base is arranged at the bottom of the box; the cylindrical eccentric shaft sleeve is connected with the motor base through a motor shaft; the tray is connected with the cylindrical eccentric shaft sleeve through a fixed shaft; the test tube plate is provided with insertion holes and inserted into the tray; and one end of the fixed shaft is fixedly arranged on the cylindrical eccentric shaft sleeve, and the other end of the fixed shaft is fixedly arranged at a central position at the bottom of the tray. The high-efficiency mixed detection and oscillation device for the oil samples is convenient to assemble and disassemble, can realize the oil sample mixing and oscillation function for a plurality of oil samples under the condition of the same heating temperature, oscillation time and test tube oscillation state, can mix the oil samples with an extract fully and mix the oil samples fully so as to improve the work efficiency.