Knowledge is currently treated as one of the most important resources of the organization. During the time of global economy, conducted on the strongly competitive market and in conditions of turbulent changes in the surrounding, it is the knowledge which is becoming an important factor determining the position on the market, opportunities of its development, multipling capital, and the same the worth of the enterprise. Hence the knowledge, or more - the intellectual capital of enterprises - have become the basic component of the worth of enterprise valuation. The article includes the try of the synthesis of the problems connected with the knowledge measurement in an organization, critical analysis of the measurement methods described in the literature. The measurement here is widely understood, as various procedures which are supposed to deliver information on the size of the knowledge resources, the kind of the knowledge, the usage of it in the realization of the organization aims.