Through the collision-system configuration, the Tsallis statistics is combined with a multisource thermal model. The improved model is used to investigate the transverse momentum and pseudorapidity of particles produced in Xe–Xe collisions at s N N = 5.44 TeV. We discuss detailedly the thermodynamic properties, which are taken from the transverse momentum p T distributions of π , K , and p for different centralities. The pseudorapidity η spectra of charged particles for different centralities are described consistently in the model. And, the model result can estimate intuitively the longitudinal configuration of the collision system.