Microfin tubes widely used in the refrigeration and air conditioning play an important role in enhancing the condensation and evaporation heat transfer. Experimental research and empirical correlations of flow boiling heat transfer in microfin tubes was reviewed based on the published papers. Effects of mass flow rate, heat flux, vapor quality, tube construction and lubricants on heat transfer coefficients and pressure drops were showed through analyzing the experimental results in previous studies. The applicability and accuracy of boiling heat transfer correlations in microfin tubes are discussed in the paper. Moreover, further research work for boiling heat transfer is proposed.