The reconstruction problem of temperature field of plasma with limited-view data is studied. The reconstruction experiment of the arc plasma tempreture is fulfilled combining the optical computed tomography with the absolute spectral intensity method in the plasma diagnosis. An optical computed tomography algorithm based on maximum entropy and optimization is discussed in detail theoretically. Its reconstruction results for asymmetrical temperature field with the simulation computation are studied. The effects of noise, view numbers and distribution are analyzed and this algorithm is compared with ART algorithm. The results show the average error of the new algorithm is 0.03% and that of ART is 1.77% with the data of two orthogonal views.The average error of the new algorithm is 1.77% and that of ART is 2.02% with the data of four space evenly views. As a measurement sample, an arc temperature field with spectrum method is reconstructed.