After only one year with Hércules, his contract was terminated so Dănciulescu came back to Dinamo in July 2010. He became a regular player for Dinamo in Ioan Andone's coaching spell and remained in the first squad in 2011, with Liviu Ciobotariu as manager. On 26 September 2011, he scored his 198th goal in Liga I in a match against Petrolul Ploiești, thus joining Rodion Cămătaru as the second most prolific goalscorer. On 17 October, Ionel Dănciulescu scored his 200th goal in Liga I, during a match against Ceahlăul Piatra Neamț. On 16 March 2013 after playing in a match against Petrolul Ploiești, Dănciulescu became the first footballer that reached 500 appearances in the Romanian top-league Liga I.