The invention discloses a seismic receiving system. The system comprises a cable and n depth controllers; the sinking depth of the cable varies periodically according to a negative sinusoidal function; and the n depth controllers are hung on the cable and are used for controlling the sinking depth of the cable, wherein n is an integer greater than or equal to 2. According to the seismic receiving system provided by the embodiments of the invention, the cable of which the sinking depth varies periodically according to the negative sinusoidal function is adopted to acquire seismic data; since the sinking depth of the cable varies periodically according to the negative sinusoidal function, time for ghost waves to reach the receiving channel of the cable is different; and after the acquired seismic data are subjected to the superposition processing of a common middle point (CMP), a wave trapping effect can be suppressed, and therefore, the effective bandwidth of the acquired seismic data is wider, and the signal-noise ratio and imaging quality of the acquired seismic data are improved.