根據市級生(sheng)產(chan)總值(zhi)(zhi)(zhi)統一(yi)核算結(jie)果，2020年威海市生(sheng)產(chan)總值(zhi)(zhi)(zhi)3017.79億元(yuan)，按可比價格(ge)計(ji)算，增(zeng)(zeng)長3.0%。分產(chan)業(ye)(ye)看，第(di)(di)一(yi)產(chan)業(ye)(ye)增(zeng)(zeng)加(jia)值(zhi)(zhi)(zhi)301.66億元(yuan)，增(zeng)(zeng)長2.9%；第(di)(di)二產(chan)業(ye)(ye)增(zeng)(zeng)加(jia)值(zhi)(zhi)(zhi)1162.27億元(yuan)，增(zeng)(zeng)長2.1%；第(di)(di)三(san)產(chan)業(ye)(ye)增(zeng)(zeng)加(jia)值(zhi)(zhi)(zhi)1553.86億元(yuan)，增(zeng)(zeng)長3.7%。全市三(san)次(ci)產(chan)業(ye)(ye)結(jie)構(gou)由上年的(de)9.7:40.4:49.9調整(zheng)為10.0:38.5:51.5。

2020年(nian)(nian)(nian)(nian)(nian)，威海市農(nong)林牧(mu)漁業總產值(zhi)按可比(bi)價格計算增(zeng)(zeng)(zeng)長(chang)(chang)3.2%，增(zeng)(zeng)(zeng)速較(jiao)上(shang)(shang)(shang)年(nian)(nian)(nian)(nian)(nian)提(ti)(ti)高(gao)2.6個(ge)百(bai)(bai)分(fen)點(dian)。2020年(nian)(nian)(nian)(nian)(nian)，全市規模以(yi)上(shang)(shang)(shang)工業增(zeng)(zeng)(zeng)加值(zhi)增(zeng)(zeng)(zeng)長(chang)(chang)4.6%，增(zeng)(zeng)(zeng)速較(jiao)上(shang)(shang)(shang)年(nian)(nian)(nian)(nian)(nian)提(ti)(ti)高(gao)2.3個(ge)百(bai)(bai)分(fen)點(dian)。2020年(nian)(nian)(nian)(nian)(nian)，全市規模以(yi)上(shang)(shang)(shang)服務業營業收入(ru)增(zeng)(zeng)(zeng)長(chang)(chang)3.9%，增(zeng)(zeng)(zeng)速較(jiao)上(shang)(shang)(shang)年(nian)(nian)(nian)(nian)(nian)提(ti)(ti)高(gao)0.8個(ge)百(bai)(bai)分(fen)點(dian)。2020年(nian)(nian)(nian)(nian)(nian)，全市固(gu)定資(zi)產投資(zi)增(zeng)(zeng)(zeng)長(chang)(chang)2.9%，增(zeng)(zeng)(zeng)速較(jiao)上(shang)(shang)(shang)年(nian)(nian)(nian)(nian)(nian)提(ti)(ti)高(gao)17.9個(ge)百(bai)(bai)分(fen)點(dian)。2020年(nian)(nian)(nian)(nian)(nian)，全市社會(hui)消費品(pin)零售總額增(zeng)(zeng)(zeng)長(chang)(chang)0.3%，分(fen)別高(gao)于(yu)全國、全省平(ping)均水平(ping)4.2和0.3個(ge)百(bai)(bai)分(fen)點(dian)。2020年(nian)(nian)(nian)(nian)(nian)，全市完成一般公共預算收入(ru)252.39億元(yuan)(yuan)，增(zeng)(zeng)(zeng)長(chang)(chang)1.0%，較(jiao)上(shang)(shang)(shang)年(nian)(nian)(nian)(nian)(nian)提(ti)(ti)高(gao)13.2個(ge)百(bai)(bai)分(fen)點(dian)。2020年(nian)(nian)(nian)(nian)(nian)，全市進(jin)出口總額1614.57億元(yuan)(yuan)，增(zeng)(zeng)(zeng)長(chang)(chang)15.1%，增(zeng)(zeng)(zeng)速較(jiao)上(shang)(shang)(shang)年(nian)(nian)(nian)(nian)(nian)提(ti)(ti)高(gao)14.3個(ge)百(bai)(bai)分(fen)點(dian)，高(gao)于(yu)全省平(ping)均水平(ping)7.6個(ge)百(bai)(bai)分(fen)點(dian)。