Abstract: The article analyzes and researches thermodynamics entropy and information entropy to point out the internal relation between information and thermodynamics, it also utilize dissipative structure theory and implicit parallelism to analyze thermodynamic essence of intelligent algorithms, then get the internal relation between thermodynamics and energy consumption of computer algorithms, implicit parallelism, intelligent algorithms, and get the conclusion that energy consumption of intelligent algorithms is lost energy.Finally, thermodynamic characteristic test of same scale algorithms and different scale algorithms is utilized to analyze and verify performance of intelligent algorithms and judge conclusion, which offers a new inspiration to research of intelligent algorithm.