A method for labeling a number, the method comprising, at a server: receiving an unfamiliar number sent from a calling terminal, the unfamiliar number being a telephone number provided to a user by a service application, and the calling terminal invoking a telephone application through the service application to call the unfamiliar number; wherein the method further comprises: receiving an application identification of the service application; acquiring an application type corresponding to the service application according to the application identification; and labeling the unfamiliar number according to the application type; wherein the application type is indicative of the service provided by the application; wherein labeling the unfamiliar number according to the application type comprises: judging whether a user feedback label corresponding to the unfamiliar number exists, the user feedback label being a feedback label about a user type of the unfamiliar number which is collected from a user historically; when a user feedback label corresponding to the unfamiliar number does not exist, labeling the unfamiliar number with a property label corresponding to the application type; and when a user feedback label corresponding to the unfamiliar number exists, labeling the unfamiliar number with the user feedback label or the property label corresponding to the application type; wherein the property label is for labeling a user type of the unfamiliar number; characterized in that labeling the unfamiliar number with the user feedback label or the property label corresponding to the application type comprises: detecting whether the property label is identical to the user feedback label; when the property label is different from the user feedback label, acquiring a user feedback label received most recently, and detecting whether a time duration between a generation time of the user feedback label and a current time is longer than a predetermined time duration; and when the time duration between the generation time and the current time is longer than the predetermined time duration, labeling the unfamiliar number with the property label. receiving an unfamiliar number sent from a calling terminal, the unfamiliar number being a telephone number provided to a user by a service application, and the calling terminal invoking a telephone application through the service application to call the unfamiliar number; wherein the method further comprises: receiving an application identification of the service application; acquiring an application type corresponding to the service application according to the application identification; and labeling the unfamiliar number according to the application type; receiving an application identification of the service application; acquiring an application type corresponding to the service application according to the application identification; and labeling the unfamiliar number according to the application type; wherein the application type is indicative of the service provided by the application; wherein labeling the unfamiliar number according to the application type comprises: judging whether a user feedback label corresponding to the unfamiliar number exists, the user feedback label being a feedback label about a user type of the unfamiliar number which is collected from a user historically; when a user feedback label corresponding to the unfamiliar number does not exist, labeling the unfamiliar number with a property label corresponding to the application type; and when a user feedback label corresponding to the unfamiliar number exists, labeling the unfamiliar number with the user feedback label or the property label corresponding to the application type; judging whether a user feedback label corresponding to the unfamiliar number exists, the user feedback label being a feedback label about a user type of the unfamiliar number which is collected from a user historically; when a user feedback label corresponding to the unfamiliar number does not exist, labeling the unfamiliar number with a property label corresponding to the application type; and when a user feedback label corresponding to the unfamiliar number exists, labeling the unfamiliar number with the user feedback label or the property label corresponding to the application type; wherein the property label is for labeling a user type of the unfamiliar number; characterized in that labeling the unfamiliar number with the user feedback label or the property label corresponding to the application type comprises: detecting whether the property label is identical to the user feedback label; when the property label is different from the user feedback label, acquiring a user feedback label received most recently, and detecting whether a time duration between a generation time of the user feedback label and a current time is longer than a predetermined time duration; and when the time duration between the generation time and the current time is longer than the predetermined time duration, labeling the unfamiliar number with the property label. detecting whether the property label is identical to the user feedback label; when the property label is different from the user feedback label, acquiring a user feedback label received most recently, and detecting whether a time duration between a generation time of the user feedback label and a current time is longer than a predetermined time duration; and when the time duration between the generation time and the current time is longer than the predetermined time duration, labeling the unfamiliar number with the property label.