This paper focuses on characterizing damaged anisotropic piezoelectric materials by using the principles of fracture mechanics. The interpretation and evaluation of the two components of the Jk-vector along contours enclosing strongly interacting microcracks in two-dimensional piezoelectric materials are presented. The conservation laws of the Jk-vector established by Budiansky and Rice (ASME J. Appl. Mech. 40 (1973) 201) for traditional non-piezoelectric materials and extended by Chen and Hasebe (Int. J. Fract. 89 (1998) 333) and Chen (Int. J. Solids Struct. 38 (2000a) 3193 and 38 (2000b) 3213) for interacting multiple cracks are reexamined for anisotropic piezoelectric materials containing inter-acting multiple cracks. The interaction problem for arrays of arbitrarily orientated and distributed microcracks subjected to mechanical and electrical loading is studied in detail. The contribution of the second component of the Jk-vector, evaluated in the local coordinate system that is attached to each microcrack, to the Jk-vector evaluated in the global coordinate system is calculated. It is found that the conservation laws of the Jk-vector are still valid in damaged piezoelectric materials, although in the present problem the elastic and electric fields are coupled which add compli-cations to the original formulations by Budiansky and Rice. In other words, the total contributions from the micro-cracks to both components of the Jk-vector evaluated in the global system vanish, provided that the selected closedcontour encloses all microcracks and/or discontinuities.