The miniaturization of crystal resonators and filters towards the MEMS (Micro-Electro-Mechanical Systems) and nano-structured scales demands improvement of nonlinear piez oelectricity theory and a better understanding of th e nonlinear b ehavior of new crystal materials. The nonlin earities affect the quality factor and acousti c behavior of MEMS and nano-structured resonators and filters. Among these nonlinear effects, drive level dependence (DLD), which describes the instability of the resonator frequency due to voltage level and/or power density, is an urgent problem for miniaturized resonators. Langasite, a new promising piezoelectric material, is of recent interest for a variety of applications because of its good temperature behavior, good piezoelectric coupling, low acoustic loss and high Q factor. It has been recently used to make high temperature MEMS. In this article, experimental measurements of drive level dependence of langasite resonators with different configurations (plano-plano, single bevel, and double bevel) are reporte d. The results show that the resonator configuration affects the DL D of the l angasite resonator. The drive sensitivity of resonators with different configurations is determined.