The D-160 diesel hammer is used for PHC pile sinking the first time in the Indonesian Banten Fengyi Industrial Park Port Project，and 9 PHC piles are selected for test pile sinking at typical positions in the sand layer. It wais found that the length of the pile shoe has a significant effect on the PHC pipe pile passing through the sand layer. The longer the pile shoe，the less the number of hammer strokes required to penetrate the sand layer，and the total number of hammer strokes will also be significantly reduced. When the pile shoe enters the sand layer，the penetration degree will decrease sharply. The main factor affecting the penetration degree is the larger end resistance. This process continues until the pile shoe penetrates the sand layer.