We investigate the phenomenon of coseismic ionospheric disturbances(CIDs) caused by Japan Noto Peninsula M_W7.6 earthquake on January 1, 2024 using the total electron content(TEC) calculated by GPS observation data. The results show that: 1) Satellite G04, located northwest of earthquake epicenter, recorded a CIDs with maximum disturbance amplitude of approximately 0.07 TECu. 2) Satellite G16, located east of earthquake epicenter, recorded a CIDs with maximum disturbance amplitude of about 0.08 TECu. 3) The G16 and G26 satellites detected more significant CIDs in south of earthquake epicenter than in other directions, which is consistent with the direction of seismogenic fault(southwest direction). Significant CIDs are also detected at Kokubunji station, located about 286.714 km south of earthquake epicenter. This significance may be due to the large vertical displacement of thrust type earthquakes, which increases the disturbance amplitude of CIDs signal. 4) The CIDs detected by G04, G16 and G26 satellites have the propagation velocities of about 589 m/s, 623 m/s, 876 m/s and 829 m/s, and the corresponding center frequencies are about 3.14 MHz, 2.9 MHz, 2.9 MHz and 2.9 MHz in the northwest, east and south of earthquake epicenter, indicating that the ionospheric disturbances detected in different regions are consistent with the characteristics of ionospheric disturbances excited by seismic waves.