The champions were held to a 2-2 draw at Reims in their first game of the new league campaign, but proved to be too strong for Bastia as goals from Lucas Moura and Edinson Cavani secured all three points in Paris.
PSG's victory came at a cost, though, as talismanic striker Zlatan Ibrahimovic was substituted only 15 minutes in after taking a knock to either his back or side and coach Laurent Blanc will be hoping the injury is not serious, having already lost defender Thiago Silva to a hamstring problem this week.
El-Hadji Ba was handed his league debut for Bastia, who played out a thrilling 3-3 draw with Marseille in their first league game of the season, following his move on a season-long loan from Sunderland.
Gregory van der Wiel was the architect, swinging over an inviting cross from the right and an unmarked Lucas clinically volleyed home from six yards out.
New signing Serge Aurier replaced Van der Wiel at the break and the home side picked up where they left off when Bastia were almost caught out by a quick-free kick, which allowed Lucas to race clear but fail to apply the finish as he fired wide of the near post.
Makelele's side failed to heed the warning, though, as they were again caught cold when Marco Verratti superbly picked out Cavani with a quick free-kick.
Cavani still had plenty to do as he took an excellent touch to control the ball, but he rifled home with his right foot as he was falling to the turf to seal PSG's win just before the hour-mark.
