The utility model discloses a crude oil density stirring temperature measuring device, the loach carrying platform comprises a supporting fram, the stirring strip, the thermometer, transmission system, the carousel, crank and sealing member, wherein transmission system passes through to establish the upper portion at the support frame after the sealing member seals, the crank is connected with transmission system's action wheel, the crank orders about transmission system work, being connected from driving wheel and carousel of transmission system lower extreme, the carousel rotates under transmission system's of the ordering about, the lower part at the carousel is connected to the stirring strip, the fixing bearing lower extreme in transmission system is connected to the thermometer, fixing bearing wears to establish in the round hole in the middle of the carousel, the thermometer is inserted with the stirring strip and is established in the densimeter graduated flask, the densimeter graduated flask is installed in the constant temperature bath pot. Transmission system is the box -like transmission system of gear train. The stirring strip is the slice. Beneficial effect: through crank control stirring speed, the hot exchange time of sample in the constant temperature bath in the graduated flask has effectively been shortened in low carbon, environmental protection, energy -conservation. And the reliability of experimental data can be improved.