Interferometric hyperspectral imaging is a popular technology with wide application in many fields.Miniaturization of instrument is conducive to promotion of the imaging technology.In order to explore a new technical scheme,a new method of interferometric hyperspectral imaging based on symmetric wedgy cavity is researched.A symmetric wedgy cavity is inserted into the imaging system to obtain the modulating relationship between optical path difference and field angle.By analyzing the working principle of the system,a model of the imaging system is designed while the major parameters such as wedge angle of interferometric cavity,reflectance,object lens,and the push- broom mode are discussed.Moreover,the proposed method is verified by the simulation with Zemax.A prototype is developed and good experimental results of lasers and actual scene objects are obtained.The research shows that besides high throughput and high spectral resolution,the advantage of miniaturization is also simultaneously achieved in this method.