Based on the piling practice of 12 mm thick steel pipe pile in a project in the Eastern Africa,we summarize the pile-driving regularity of the thin-wall steel pipe pile in the highly weathered rock area and the conclusions are as follows:when the steel pipe pile enters the highly weathered rock of 50 standard penetration blow count,the penetration is within 21.5～28.3 mmblow and the maximum energy transfer coefficient reaches 94.5% of the hydraulic pile driving hammer while the pile tip is in the highly weathered rock.The penetration depth of pile tip can reach 7.1 m in the highly weathered rock,and the penetration is 1.5 mmblow correspondingly.When the pile tip of the thin-wall steel pipe pile enters 3.7 m below the highly weathered rock layer,the end resistance increases slowly,and the resistance value of the pile increases by 30.8%～32.8% according to the result of pile D1 and E1.