A 2+1 phase-shifting algorithm with temporal phase unwrapping is proposed in this paper. Traditional 2+1 phase-shifting algorithm plays a good performance in terms of suppressing errors introduced by motion. In order to simultaneously realize temporal phase unwrapping, only one additional auxiliary sinusoidal grating with lower frequency is needed, then the geometric constraints are used to unwrap phase of the lower frequency deformed pattern by combining Hilbert transform to guide unwrapping the phase of 2+1 algorithm. The experimental results show that the proposed algorithm can successfully recover phase information of objects with large-scale depth and intricate surfaces with higher measuring accuracy and higher measuring speed.