A laser diode end-pumped 1053-nm all solid state continuous wave single frequency Nd∶YLF laser is designed and demonstrated experimentally. In order to overcome the low fracture limit, a long and low concentration Nd∶YLF is used in the experiment. The threshold power of the laser is 4.7 W and the single frequency output power is 4.21 W at pump power of 17.9 W. The long term power fluctuation is less than ±0.8％ (4.75 h) and the free running frequency stability is ±10 MHz/min. To improve the frequency stability, the laser is locked to a Fabry-Perot cavity resonance, then the measured frequency stability is less than ±1.7 MHz/min.