Tensor renormalization group, which is a numerical algorithm in tensor network scheme, has fascinating features: (i) no sign problem, (ii) logarithmic volume dependence of computational cost, (iii) direct treatment of Grassmann variables, (iv) direct measurement of partition function itself. These inspires the interest across various research fields. Application of tensor renormalization group to particle physics has been led by our group. I will explain the recent progress of our research.