The scattering effect of strongly scattering medium makes the traditional optical imaging system can not detect the internal targets of scattering medium. To resolve this problem, a method is proposed to real-time detect the object locates in the strongly scattering medium with high resolution. According to the principle of wave front shaping theory, in condition of convergent lighting, pure phase spatial light modulator is employed to obtain a clear image of a spot target on the surface of the scattering medium. After the illumination is expanded , objects near the pre-corrected point can be clear imaged with a large field of view and a long depth of field with the modulation pattern unchanged. The experimental results prove this method can achieve high acuity real-time imaging. The imaging quality of the traditional optical imaging system without scattering medium and the scattering imaging system with scattering medium is compared. The experimental results show that the scattering imaging system has a better imaging acuity than the conventional optical imaging system.