Coherent beam combination is an effective way to achieve high-power laser while maintain good beam quality. In coherent beam combination, the piston phase differences, tilt-tip wavefronts and filling factor of each beamlets have direct effects on the combined beam quality. The tilt-tip error of each beamlet have significant influence on coherent combination, so the tilt-tip control is of great significance. The main tilt-tip control instruments, including liquid crystal spatial light modulator, fast steering mirror and adaptive fiber collimator, are introduced detailedly. Advantages and disadvantages of different tilt-tip wavefront active control methods are analyzed. The development and perspective of tilt-tip wavefront control in coherent beam combination are reviewed.