The acoustic response of bedding hard brittle shales is the foundation of well logging data interpretation during the shale gas development process.To better understand the ultrasonic penetration through bedding shale reservoirs, we first collected the shale outcrops from the Lower Silurian Longmaxi Shale in southeast Chongqing, and transversely isotropic large rock samples were preliminarily screened with the velocity test method to acquiring comprehensive knowledge on the propagation characteristics of the ultrasonic wave of bedding shale reservoirs.On this basis, cores were drilled from different bedding direction, meanwhile multi-frequency ultrasonic transmission, experiments were performed in the laboratory, thereby to get the law of acoustic wave propagation in different bedding directions. The following findings were obtained. a. Rock samples used in the experiments are mainly composed of black shale, gray and black shale, dark gray shale and silty mudstone, the porosity of which ranges from 1.5% to 2.5%, and the permeability of which is mostly less than 1 mD. b. With the increase of the bedding angle within the range of 0°-90°, the wave velocity decreases obviously while the attenuation coefficient increases. c. There is a good negative correlation between the wave velocity and porosity. Attenuation coefficient increases with the increase of porosity and its increasing degree becomes greater with the increase of the bedding angle. d. The wave velocity and the frequency both increase in a logarithm tendency, the dispersion phenomenon is obvious, and the attenuation coefficient increases with the increase of frequency. The above experimental results about the correlation between rock acoustic properties and bedding formation of shales provide a reliable experimental basis, based on which an accurate formation rock strength profile and wellbore stability analysis can be established in the process of shale gas development.