The invention discloses an user privacy data sending method and receiving method. The user privacy data sending method comprises the following steps: receiving global parameters, wherein the global parameters comprise bloom filter parameters, privacy budget proportional parameters and randomization parameters; randomizing the user privacy data according to the privacy budget and the global parameters; and sending the randomized user privacy data. By means of the user privacy data sending method and receiving method, the personalized privacy protection needs of the users are considered without the need to check whether the data collector is trustworthy or not.