The problems of political parties in the consolidation of democracy in Nigeria has been of serious concern. In the course of carrying out the research some fundamental objectives were examined, such as: The role effectiveness of political parties in Nigeria, impacts of political parties in consolidating Nigeria democratic system and ways political parties can consolidate the democratic system. From the following, the study used primary and secondary sources of data collection and simple percentage was used for data analysis. Furthermore, the findings revealed that political parties are seriously engaged in political recruitment, political education, interest aggregation for the consolidation of democracy in Nigeria amongst others. Finally, the study recommended amongst others: that electoral violence should be avoided as it is against the norms and values of Nigeria democratic system.