The invention discloses a continuous aluminum electrolysis cell temperature measuring device and a manufacturing method thereof. The device comprises a temperature measuring thermocouple, a compensating wire, a single chip microcomputer and a displayer, wherein the temperature measuring thermocouple is connected with the single chip microcomputer through the compensating wire and comprises a thermode, insulating materials, a protective sleeve and a connecting box, and the single chip microcomputer is connected with the displayer. The manufacturing method includes that a working end of the thermode is placed into the protective sleeve, the position, between the thermode and the protective sleeve, is filled with the insulating materials, and a cold end of the thermode is fixed on the connecting box and connected with the compensating wire; two ends of the single chip microcomputer are connected with the compensating wire and the displayer. The protective sleeve is produced by slip casting. The continuous aluminum electrolysis cell temperature measuring device and the manufacturing method thereof have the advantages that the thermocouple used by the device is good in thermal shock resistance, high in thermal conductivity and low in thermal expansion, can be resistant to fused salt corrosion and electrolyte erosion at a high temperature and is good in corrosion resistance of a gas, liquid and solid three-phase boundary, so that the device can be used for measuring the temperature in an electrolysis cell for a long time.