Abstract: To overcome the shortcomings of the chaotic circuits constructed by the discrete components such as high power supply voltage,high energy consumption,large volume and narrow spectrum,the proposed hyper-chaotic system is implemented with CMOS integrated circuit technique and the corresponding modules such as trans-conductance amplifier,absolute value circuit and sign function circuit are developed.By changing the parameters of the four-dimensional hyperchaotic system,the system will produce different dynamic behavior,by means of theoretical analysis and numerical simulation,some basic dynamical properties are dicussed.Pspice simulation test is employed with TSMC 0.35μm CMOS standard technology to verify the circuit validity.Pspice simulations are conducted on the resultant circuit to verify its dynamical behaviors and high frequency performance.