The Central Disaster Management Council (2013) suggested that we need to take measures for an intraslab earthquake occurring inside the Philippine Sea Plate (Mw7.3) below the Tokyo metropolitan area. However, there is no established method to determine design ground motions for intraslab earthquakes in the technical standard for Japanese ports. In this study, we conducted strong ground motion simulation with the pseudo point-source model for the 2005 Central Chiba intraslab earthquake (MJ6.0) and the results were analyzed in an effort to establish a method of determining design ground motions for intraslab earthquakes. The 2005 Central Chiba earthquake is the biggest intraslab earthquake that occurred just beneath the Tokyo metropolitan area since the establishment of nationwide dense strong motion networks. Therefore, this earthquake has been considered suitable for the validation of strong motion simulation by engineering seismologists in Japan. The pseudo point-source model is a relatively new source model for strong ground motion simulation which was proposed by Nozu (2012). The model has been applied to some subduction and shallow crustal earthquakes and resulted in good agreement with observations. However, it has never been applied to intraslab earthquakes occurring below the Tokyo metropolitan area. In this study, strong ground motion simulation was conducted for strong-motion stations and the results were compared with observations in terms of velocity time history, Fourier spectrum and PSI values. In general, the simulation results showed excellent agreement with the observations, indicating that the pseudo point-source model is promising for the simulation of strong ground motions for intraslab earthquakes. In some area, however, discrepancies were found between the simulation and observation. One of them is the underestimation of high frequencies at large distance, which is presumably due to the use of a Q value that is not specific to the target area. Another discrepancy was the underestimation of intermediate frequencies in the west of the epicenter, which was presumably caused by the rupture directivity effect, which is not considered in the current version of the pseudo point-source model.