The multiple-input multiple-output (MIMO) sin frequency diverse array (sin-FDA) radar has the ability to estimate the angle and range of targets and it is crucial to improve the accuracy of two-dimensional estimation. To increase the range-angle estimation accuracy of the sin-FDA-MIMO radar, time reversal (TR) technology is introduced to make full use of the spatial diversity of multipath propagation and improves the performance of range-angle estimation algorithm. At first, the receive signal model of the sin-FDA-MIMO is analyzed. Then, the receive signal model of the sin-FDA-MIMO is derived based on TR technology. The Capon and MUSIC algorithms are used to estimate both the range and angle of single target and two targets respectively for two kinds of signal receive models. Finally, the correctness of the conclusion is verified by simulation.