Abstract: Analyzed in the paper are the operation situations of the two world major steel tube-making groups, Tenaris and Vallourec in 2016 in terms of steel pipe sales volume, profitability, market distribution, balance and solvency.Based on the analysis, it is regarded that in 2016, performances of the two groups obviously declined, due to reduction of global oil and gas investments which caused the serious poor sales of the pipe types like OCTG Nevertheless, the strategic stimulus plan by Vallourec has achieved significant success.And both groups have great expectations on the market in 2017, and been confidence in picking up of the market demand.