Abstract: This study shows the scale dimensionality of antecedents to ecotourism destination loyalty in the context of Malaysia. The unit of analysis was ecotourists who visited these destinations. The data was collected from popular ecotourism destinations in the Peninsular of Malaysia and Sabah. The study managed to acquire a total of 813 samples after the fieldwork ended, giving the study a response rate of 47%. The data was analysed using exploratory factory analysis to explore how many factors there are whether the factors are correlated, the results showed the underlying constructs of ecotourist’s destination loyalty in Malaysia. Correlation analysis showed the linkage or level of association of each antecedents to ecotourism destination loyalty except the number of trips.