經廣東省統計局(ju)統一核算(suan)，2020年茂(mao)名市實現(xian)地區生產(chan)總值（初步核算(suan)數(shu)）3279.31億元(yuan)(yuan)，比(bi)上年增(zeng)長(chang)(chang)1.5%。第(di)一產(chan)業(ye)增(zeng)加(jia)值648.68億元(yuan)(yuan)，增(zeng)長(chang)(chang)5.4%；第(di)二產(chan)業(ye)增(zeng)加(jia)值1032.43億元(yuan)(yuan)，增(zeng)長(chang)(chang)1.1%；第(di)三(san)(san)產(chan)業(ye)增(zeng)加(jia)值1598.20億元(yuan)(yuan)，增(zeng)長(chang)(chang)0.5%。三(san)(san)次產(chan)業(ye)結構比(bi)重為(wei)19.8∶31.5∶48.7。

2020年(nian)(nian)(nian)茂名市糧(liang)食(shi)作物播種面(mian)積(ji)374.92萬(wan)(wan)畝(mu)，比上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)1.2%。全(quan)(quan)(quan)部工業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)比上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)0.2%。全(quan)(quan)(quan)社會建筑業(ye)(ye)(ye)(ye)實(shi)現增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)305.30億(yi)(yi)(yi)(yi)元(yuan)(yuan)，比上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)4.9%。全(quan)(quan)(quan)年(nian)(nian)(nian)金融業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)106.73億(yi)(yi)(yi)(yi)元(yuan)(yuan)，比上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)5.3%，房地(di)產業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)241.66億(yi)(yi)(yi)(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)長(chang)13.0%，交通運輸、倉儲和(he)郵(you)政業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)128.04億(yi)(yi)(yi)(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)長(chang)2.3%，批發和(he)零售(shou)業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)385.72億(yi)(yi)(yi)(yi)元(yuan)(yuan)，下(xia)(xia)(xia)降(jiang)13.1%，住宿(su)和(he)餐飲(yin)業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)48.74億(yi)(yi)(yi)(yi)元(yuan)(yuan)，下(xia)(xia)(xia)降(jiang)21.4%。現代服務業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)786.97億(yi)(yi)(yi)(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)長(chang)6.5%。生產性服務業(ye)(ye)(ye)(ye)增(zeng)(zeng)(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)566.78億(yi)(yi)(yi)(yi)元(yuan)(yuan)，下(xia)(xia)(xia)降(jiang)0.9%。全(quan)(quan)(quan)年(nian)(nian)(nian)社會消費品零售(shou)總(zong)(zong)額1356.48億(yi)(yi)(yi)(yi)元(yuan)(yuan)，比上(shang)年(nian)(nian)(nian)下(xia)(xia)(xia)降(jiang)5.7%。全(quan)(quan)(quan)年(nian)(nian)(nian)進出口總(zong)(zong)額199.27億(yi)(yi)(yi)(yi)元(yuan)(yuan)，比上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)1.5%。全(quan)(quan)(quan)市接(jie)待游(you)客(ke)801萬(wan)(wan)人次，其(qi)中過夜(ye)游(you)客(ke)536.49萬(wan)(wan)人次，一日游(you)游(you)客(ke)264.52萬(wan)(wan)人次。旅游(you)總(zong)(zong)收入88.62億(yi)(yi)(yi)(yi)元(yuan)(yuan)，旅游(you)外匯收入317.07萬(wan)(wan)美元(yuan)(yuan)。