Measurements of thermoremanent magnetism were made using a SQUID magnetometer on 70 samples of sherds of pottery, porcelain and fragments of brick and tile from China. The magnetic field behavior from 4000 BC to the present was more complex than that observed in Western Asia, Egypt, etc. Results on the 70 samples are given: 450 were tested but satisfactory magnetic characteristics were present in this minority of cases. The ceramics came from four different provinces, two in North China and two in the South. The high intensity values between 1500 and 1000 BC and 0-500 AD are probably due to non-dipole disturbances in the geomagnetic field. -- AATA