Conformal invariance of critical lattice models in two-dimensional has been vigorously studied for decades. In this talk, we focus on connection probabilities for Ising model. This talk has two parts. In the first part, we consider critical Ising model and give the connection probabilities of multiple interfaces. Such probabilities are related to solutions to BPZ equations in conformal field theory. In the second part, we explain a relation between multiple Ising interfaces and Dyson’s circular ensemble.