Abstract: The neutron star as a supernova remnant is attracting high attention recently due to the gravitation wave detection and precise measurements about its mass and radius. In the inner core region of the neutron star, the strangeness degrees of freedom, such as the hyperons, can be present, which is also named as a hyperonic star. In this work, the neutron star consisting of nucleons and leptons, and the hyperonic star including the hyperons will be studied in the framework of the relativistic mean-field(RMF) model. Some popular non-linear and density-dependent RMF parametrizations will be adopted to investigate the role of hyperons in a hyperonic star on its mass, radius, tidal deformability, and other properties. Finally, the coupling strengths between mesons and hyperons are also discussed, which can generate the massive hyperonic star with present RMF parameter sets, when the vector coupling constants are strong.