Abstract: As a typical ecological planting and breeding technology, integrated rice-crayfish farming technology can relieve the pressure on resources and environment and effectively increase farm income. Its popularization and sustainable development are important means to promote the transformation of green agricultural development in China. Based on a micro survey data of farmers in Hubei, Hunan and Anhui provinces, this paper analyzed the influences of government intervention and neighborhood effect on farmers’ willingness to continuously adopt integrated rice-crayfish farming technology and explored the interaction effect between the two by the Heckman two-stage model. Results show that farmers’ adoption rate of the integrated rice-crayfish farming technology is high, 86.67% of farmers with clear intention of continuous adoption. Research also finds that technology subsidies have significant positive impacts on farmers’ adoption behaviors, while propaganda policy and punishment measures have significant positive impacts on farmers’ willingness to continuous adoption of the technology. For the neighborhood effect, result shows that neighborhood communication has a significantly positive impact on farmers’ continuous adoption willingness and neighborhood demonstration has a significantly positive impact on farmers’ adoption behaviors. In terms of the impact on farmers’ sustainable adoption intention, the propaganda policy and neighborhood communication have a substitution effect between each other, and the punishment measures and neighborhood communication have a complementary effect. Therefore, it is necessary to improve the government intervention mechanism, to strengthen the communication and interaction between farmers, and to promote the continuous spread of the integrated rice-crayfish farming technology.