Acicular particles of Na 0.5 Sr 0.25 NbO 3 and NaSr 2 Nb 5 O 15 were successfully synthesized in the KSr 2 Nb 5 O 15 +NaCl system and SrCO 3 +Nb 2 O 5 +NaCl+KCl system, respectively. It was found that the anisometric particles could not be obtained in the SrCO 3 +Nb 2 O 5 +NaCl system. A facile ion-exchange approach was utilized to prepare acicular Na 0.5 Sr 0.25 NbO 3 particles. Acicular NaSr 2 Nb 5 O 15 particles with large aspect ratio could be obtained at the weight ratio of salt-to-mixture of 5:1, which were ideal template for fabricating textured ceramics. The growth process was researched and the synthesis method was suggested to be a self-precursor templating route. The results will be propitious to guide the fabrication of other templates with anisotropic morphology which were hard to prepare directly.