The invention relates to a network node evaluating method, with multi chains relations of the nodes recursively deciding the level of each webpage. The level of each node is the sum of entry chain positive weight and weighting of the source node, or the sum of negative weighting and the target node level, or the sum its commonly quoted relationship weight and the common quotation relationship node level, or the sum of common index relationship weight and the level of the common index relationship node, or further sum of the four kinds of the weighting sum. Network node can be webpage, or super webpage representing the chain relationship of all the said web pages. The evaluating result of this invention can provide even more holistic and accurate reflection of the quality, importance and authority of the nodes, with good stability, and better effect of anti plagiary. It can provide better technical result for sequencing the result of the webpage searching, website classification, and search result sequence.