Abstract: Abstract:The stress and strain of pile were tested by setting reinforcing steel bar ergometer and sliding micrometer, and some influence factors to test results were discussed that the reinforcing steel bar ointing, the concrete cast, and the concrete blockinstall by chain block during static load test. It was analyzed that the relation of elastic modulus between stain of pile, the distribution of pile side friction force and tip force for different load, the side friction force character for the settlement of pile, and the side friction force character of silty sand and silty clay for relative displacement between pile and soil. The research results are references for design and research in the similarity engineering.