The Reverse Time Migration (RTM) is a high-precision imaging method based on the two-way wave equation, which is achieved by forward and reverse continuation of the wave field. Being different from the one-way wave migration method, full wave field information can be used in RTM and there is no limitation on propagating direction and not be necessary to separate up and down going waves in the wave field. The wave-field can be regarded as the superposition of vector waves, and thus it overcomes the limitation on the dip angle, and can better image the turning waves and multiple waves. When the given velocity field is accurate enough, the accurate imaging of an arbitrary complex medium can be obtained by RTM theoretically. However, the low-frequency noise is one main factor to obstruct its wide application. In this paper, on the basis of analyzing the advantages and disadvantages of various imaging conditions, the normalized cross-correlation imaging condition is used for the RTM of some typical testing models, and the imaging results indicate the method is effective. Furthermore, the wave-field separation, Poynting vector, and Laplace operator filtering methods are used in RTM for the combination and Marmousi2 models respectively. The effects of the three denoising methods are compared and these tests will provide practical suggestions on how to achieve the accurate seismic imaging by RTM.