The invention provides a self-temperature-limiting heat tracing band with an anti-explosion connection circuit and a manufacture method thereof. The self-temperature-limiting heat tracing band comprises a PTC core band in which two parallel conductors are arranged; an inner insulating sheath, a metal shielding layer and an outer insulating sheath are sequentially arranged outside the PTC core band; the end part of the self-temperature-limiting heat tracing band is provided with a module structure tail end which includes a locking sleeve connected to the self-temperature-limiting heat tracing band, a tail end protective jacket is arranged outside the locking sleeve and the self-temperature-limiting heat tracing band, and the tail end protective jacket is connected to a tail end seal cover; the middle part of the self-temperature-limiting heat tracing band is provided with a module structure joint which includes a male locking connector and a female locking connector which are mutually connected in a plugging manner. According to the heat tracing band, the effect of automatic temperature limitation can be achieved, the temperature is prevented from being too high, temperature rising time is short, heating is uniform, and electricity consumption is low; the connectors of the heating tracing bans are connected in a plugging manner, so that gluing is not needed, and connection is simple and rapid.