Under the multi-path channel condition, the preamble-based channel estimation methods have very large pilots overhead in OQAM/OFDM (offset quadrature amplitude modulation/orthogonal frequency division multiplexing). To solve this problem, a scattered pilots aided channel estimation method based on the compressed sensing for OQAM/OFDM system was proposed by utilizing the sparsity of wireless channel. The principle of OQAM/OFDM channel estimation method based on compressed sensing was established and a scattered pilots pattern, which deploys pilots symbols on few subcarriers randomly, was also designed. The proposed method can reduce the pilots overhead significantly and realize the highly accurate channel estimation. The simulation results validate the efficacy and the superior performance of the proposed method in both slow and fast time-varying wireless channel.