Kreo Cave is one of the tourist destinations in Semarang City in the form of nature reserve tours. Kreo Cave provides opportunities for the community to improve economic, social and cultural welfare. The existence of Kreo Cave and its tourism development has a very positive potential for various parties such as the government, the community, tourists so that Kreo Cave has the value of tourism potential that can support the development of Semarang City. Visitors to Kreo Cave experience an increase every year so that it can be said that tourism objects have developed. Therefore, this study conducts an economic assessment of the area of Kreo Cave which has undergone development. Based on these, the frequency of tourist visits can be analyzed to determine the direction of development of attractions. Tourism development can be seen using the Travel Cost Method (TCM) and Contingent Valuation Method (CVM) to determine the WTP (Willingness to Pay) value to see the development of Total Economic Value (TEV) tourism from Kreo Cave. This research produce total economic value (TEV) from the Kreo Cave of Rp. 463,392,708,190, - in 2015, Rp. 373,242,613,540, - in 2016 and Rp. 552,610,924,100 in 2017. These results indicate an increase in the value of TEV in Kreo Cave between 2015 and 2017.