This work aims to analyse the dynamics of macroeconomic fluctuations in Cameroon and to determine the resulting business and growth cycles turning point chronology. The construction of a reference turning point chronology poses some problems related to the choice of the methods to be used. In this work, we use the Bry and Broschan algorithm and the HODRICK-PRESCOTT filter to estimate the Cameroonian classical business cycle and growth cycle turning point chronology respectively. On the one hand, the results obtained point to a great similarity in the duration phases of the two kinds of cycles. On the other hand, the emerging cycles allow us to observe the influence of the negative shock of the 1985-86 years on the evolution of the Cameroonian GDP cycle.