This paper gives a detai1ed account of the measuring techniques and the results of the dynamic welding parameters and the pressure field in bonding region，respectively used and obtained in the tube-to-tubeplate explosive welding. In the experiments，the dynamic welding parameters，such as the impact velocity V_p，the collision point velocity V_c，and the dynamic angle of collision β，are measured with slanting wire method，for verifying the slanting wire method，the electrocontact probe technique is used to measure the detonation velocity V_d; while the pressure field P(L)in the bonding region is measured with manganin stress gauge.