This paper studies the relationship between incumbent MPs’ activities and their electoral fortune. We address this question in the context of the French political system characterized by an executive domination, a candidate-centered electoral system, and an electoral schedule maximizing the impact of the presidential elections. Given the contradictory influence of these three institutional features on the relationship between MPs’ activities and electoral results, the overall link can only be assessed empirically. We test the effects of several measurements of MPs’ activities on both their vote share and reelection probability in the 2007 legislative election. We show that MPs’ activities are differently correlated to both the incumbents’ vote shares in the first round and their reelection. Despite the weakness of the French National Assembly, several parliamentary activities, especially bill initiation, have a significant effect on MPs’ electoral prospects.