Abstract: The quality of the large rivers crossings of pipeline projects in China is strongly restricted by inaccurate and rough geological data as well as insufficient availability of the construction technology and implements. The following problerms are indicated through on-the-spot investigation: ①The quality of exploration can not be ensured due to the obsolete equipment and fornidable conditions; ②The construction quality is lowered because of the immutable construction procedure and insufficient availability of technology and implements; ③Incomplete managerial system and the absence of consunmate quality control system result in the successive breaking of project estimates, budget and final accounting and the under-utilization of manpower and equipment. To counter these problems. it is pointed out that proper construction procedures that tally with actual situations shall be adopted, existing problems shall be dealt with objectively, and standard design, prefabricated engineering and necha nized construction shall be realized as soon as possible, so that the construction quality and speed can be in step with the development of petroleum industry.